Rifleshooter.com and its authors, do not assume any responsibility, directly or indirectly for the safety of the readers attempting to follow any instructions or perform any of the tasks shown, or the use or misuse of any information contained herein, on this website. While the powder formulas are identical, the chrono testing is likely from different production lots. Its base, capped with a bit of lead core, penetrated to approximately 15 inches but was only about the size of an aspirin. Wind Direction is: 3.0 o'clock and a Wind Velocity of: 10.0 Miles . (ft/s) PRESSURE 223 Remington 55 GR HDY FMJ Hodgdon Tite Group .224" 2.200" 300 Blackout 125 GR NOS BT Hodgdon Trail Boss .308" 2.060" 300 Blackout 135 GR SIE VAR HP Hodgdon Trail Boss .308" 2.055" 300 Blackout 150 GR HDY IB Hodgdon Trail . The .30 Blackout was originally offered as the .30 AAC Blackout.All of these named cartridges are nearly identical in dimensions and could probably use each others' loading data without any problem. .452 diameter, 300 grain Wide Flat Nose Bullets (50 count) 45 Colt: Match Solid: 300: VIEW: 07400140SP .400 caliber, 140 grain Xtreme Penetrator Lead-Free Bullets . (LogOut/ Example 220gr subsonic data there for h4198 and reloader 7 two thingsfirst not in anyway subsonicthey are high velocity. I'd use that as a reference. Because velocity is critical to performance, this load should be a great match for an SBR. Another .300 AAC benefit came from a very significant noise reduction when subsonic loads and a suppressor were used. My loads with 125 gr TNT/22.5 gr of LIL GUN chrono'd at 2700 fps. Well, there is not much extensive data for reloading either, but Sierra Bullets is trying to help change that. Bullet Type Start Load (Grains) Start Velocity (Fps) Max Load (Grains) Max Velocity (Fps) Max Pressure (Psi) COL (Inches) Converting an AR-15 to fire 300 Blackout is as simple as swapping its barrel. However, the 130-grain TTSX did not, mainly because the heavier bullet could not achieve as much velocity. SKU: A4625--10 Categories: Ammo, GameChanger, In-stock Tag: GameChanger. The .300 HAM'R (center) has a case length between the .300 Blackout (far left) and .223 Remington (far right). In my Palmetto State Armory 7.5 upper the load functions perfectly ! . Access features of the Reloading Handbook on your mobile device with the Reloading App. Industries by resizing the .221 Remington Fireball to accept .308 bullets. Glock Certified Armorer Simple solution reload! Just for kicks, I also assembled subsonic loads with two heavyweight bullets. Many AR-15 enthusiasts and hunters have a strong appreciation for .300 AAC Blackout because of its versatility and available grain weight range. In previous testing, the special-built 110-grain Barnes TTSX bullet loaded in the Barnes Vor-Tx and DoubleTap Tactical offerings delivered the usual, outstanding Triple-Shock terminal performance. 12 gr. Damn Rebelis that road kill or dinner? To establish accuracy potential and velocity boundaries, I fired one, 10-shot group at 100 yards with each load. JP silent spring, 1 1/2 MOA . - Bullet: Hornady 125gr SST. Firefighter/EMS 300 Blackout with 125 gr. May be solid copper, have not cut one apart to verify. Bullet: 125-grain Nosler AccuBond Powder/Charge: Accurate 5744, 20.8 grains (compressed) Primer: Federal Small Rifle Cartridge Overall Length: 2.13 inches Muzzle Velocity: 2,203 fps This bullet. Hornady reloading data for their 125-130 grain bullets, Accurate 1680 powder is starting at 18.3 grains for 1700 FPS, max at 20.7 grains for 1900 FPS. Out of stock. Impact velocity was obtained with a Shooting Chrony positioned in front of the gel block. The target was a 2 orange dot printed on paper. The 300 AAC Blackout (300 BLK, or 7.62x35mm) was created by Advanced Armament Corp. and Remington in order to provide the military with a way to shoot .30 caliber bullets from the M4 platform with only a barrel change. SPT Pro-Hunter C.O.A.L . Take those two groups out of the mix, and the average group size falls to 2.42 inchesmore than .70 inch better than the average for the six supersonic factory loads I tested in the MPW carbine. The round delivers performance mirroring the Soviet 7.62x39mm. The 125 SST is a good bullet for deer as well out to about 125, maybe 150 yards, anything past that is sketchy as you are lobbing them in there. Blackout-compatible propellants include fast burn rates found in designated pistol, rifle powders typically fueling smaller varmint rounds like the .22 Hornet and Blackout-inspired powders like Hodgdon CFE-BLK, Accurate 1680 and Shooters World SOCOM and Blackout. I need to thread the needle between going over pressure and not going under pressure then sticking the bullet in the bore. Set-out was a noticeable problem only with the Nosler bullets, but it could have been occurring with other bullets, too, and just not showing up as glaringly on target. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. I could see no real advantage offered by the .300 Blackout in supersonic form over the .223 Rem. 0. Speer TNT bullets and Enforcer powder CMP M1 Garand WRA June 2021 Smith and Wesson Model 610 - 10mm FUN Smith and Wesson Model 645 - The Miami Vice Classic CMP Winchester WRA Garand Summer 2021 Rock Slide USA - Glock 10mm Build LEE APP with Universal Case Feeder and Collator A subsonic 300 Blackout round produces comparatively little muzzle flash in addition to a softer report, making it a fine choice for hunting in nighttime and twilight conditions. Just like with the 190-grain VLD handload and most factory subsonic loads, bullet expansion was nonexistent and penetration was excessive. There was, however, a concern: The load would only feed about 50 percent of the time. Sign up with your email address to receive news and updates. The 300 BLK is an interesting cartridge for the rifleman. I like my custom 300 BLK. Like the 125-grain Nosler AccuBond, this bullet delivered sub-par accuracy in the AAC carbine. This bullet shot sub-one-inch groups with all powders tested. 18.0-18.2 H110 works good for 125 gr weight bullets. 18gr H110/ W296 , 125 SST, 2.11 COAL, CCI 450 primers. They are only safe in the rifle shown and may not be safe in yours. If you're going to taper-crimp, trimming cases to the same length will take care of half the problem. There's a narrow band of powders that work well with the .300 Blackout. You might ask, what is the .300 Blackout good for? Penetration indicates the point in the gel block where the largest piece of the bullet came to rest in inches. The AccuBond's jacket is thicker than most conventional bullets, and the core is not pure, soft lead, making it harder for a taper crimp to take hold. One looks like he has lettuce in his teeth. It has very similar ballistics to a traditional AK-47 chambered for 7.62x39mm (.300 AAC Blackout is 7.62x35mm metrically), but you have the popular American platform of an AR-15. <> There may be rate exceptions but your in for a lot of frustration if you go that route. The VLD Hunting bullet is designed to expand, but not at subsonic velocities. PRESCRIPTION 7Bullet: Berger 190-grain VLD HuntingPowder/Charge: Accurate 1680/12.2 grainsPrimer: Federal Small RifleCartridge Overall Length: 2.22 inchesMuzzle Velocity: 1,187 fps. .298 quantity. Brass is NEW Norma 300 Black Out head stamped brass . Thats a lot of work already done that I only need to tweak for my rifle, however when I chrono these loads Sierra is pretty much dead on! The best 5 shot group was .334 MOA while the worst was 3.787 MOA! What could be the problem with the load in the 16.5 ? Snipers Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Brass is NEW Norma 300 Black Out head . Since I was deep into this handloading project and had a lot of brass left over from testing the factory ammo, I figured I might as well assemble some subsonic loads. It would work well for defense and tactical applications; the bullet's bonded construction would help it hold together when encountering a barrier. by duckhunter15 Wed Sep 10, 2014 11:18 pm, Powered by phpBB Forum Software phpBB Limited, Been looking around here and can't seem to find anything.I must be missing it. .300 AAC Blackout.308 Winchester.30-30 Winchester.300 Savage. During that week-long hunt, the Highlander functioned flawlessly. The Blackout allows for the creation of supersonic loads with bullets weighing 90 to 180 grains and subsonic (less than 1,125 fps) loads popular with suppressor owner with 200- to 230-grain bullets. Also slight keyholing and groups growing up. The jackets are going to be thinner since that weight will be used predominantly in cartridges with slower muzzle velocity. Add to Cart. An adjustment in overall length might correct this problem. The 300 Blackout is frequently available with 200 and 220 grain bullets. Guest Writer | Sierra Bullets Blog To the point of ruining a lot of meat. Taken from Tenth Edition reloading manual. . Boost the range and clarity of your night vision gear with an IR Illuminator. Click to view trajectory chart. I personally always use the A1680 for the heavy subsonic loads and load H110 or Win296 under bullets 150 grains or less. Jones of SKK. Its really a great 300 Blackout powder. 3 0 obj endobj Buy Black Hills Ammunition 300 AAC Blackout/Whisper 125 Grain 20 Rounds : GunBroker is the largest seller of Rifle Ammunition Ammunition All: 979812720. . If your first priority is subsonic performance from a .30-caliber AR, go with the .300 AAC Blackout and heavy bullets. In many ways, it is the anti-rifle cartridge. The test firearm was the Alexander Arms Highlander Pistol, including shoulder brace with threaded 10-inch barrel, holding Rebel Silencers SOS Hunter suppressor, was used during my most recent Texas foray. With all of the positives I have just stated, there have to be some negatives. JavaScript seems to be disabled in your browser. Should be useful data for load work-up. Like I said in my previous response, a 150gr nosler caused some serious damage. Select your cartridge type from the drop-down list. : 1.831" Powder: 10.3 gr 13.0 gr Vel. The low case capacity requires the use of powders with a fast burn rate like H110 and IMR 4227. Onm4>#wgfYcX+x;^!%w Gpho?w3x[:gb@UC8|tKn). 180 grain rainier wedges cycled with 11ish grains of IMR4198 out of my PSA 10.5in suppressed with Syrac Ordinance adjustable gas block. Accuracy was not. Sierra 180Grain match king projo, 12.2 grains of powder. (At my location the speed of sound was about 1,143 fps on the test date.) The Blackout allows for the creation of supersonic loads with bullets weighing 90 to 180 grains and subsonic (less than 1,125 fps) loads popular with suppressor owner with 200- to 230-grain bullets. The 300 Blackout cartridge is a .30 caliber round, which is slightly larger in diameter than the 5.56mm NATO round that is commonly used in the AR-15 platform. This had a horrible effect on accuracy. V RIFLE RELOADING DATA Test Specifications/ Components Firearm Used: CMMG Barrel Length: 16" Twist: 1 x 8" Case: Remington Trim-to Length: 1.363" Primer: Rem 7 1/2 Remarks: The 300 AAC Blackout (300 BLK, or 7.62x35mm) was created by Advanced Armament Corp. and Remington in order to provide the . You all show older data in the 300 using lil gun for a load workup option. The rifle, as pictured above, includes the following parts fromBrownells: For testing and evaluation purposes, I used 125, 135, 175 and 220 grain Sierra MatchKings (left to right in photo below) over H110 and IMR 4227 powders. Keep in mind that the benchrest crowd, the hot-rodders of this sport, feel the best accuracy is on the edge of stabilization. If you folks want really figures use quick loadthis data and noslers data is bogus. Rifle used: Ruger American Rifle Ranch, 300 Blackout, 16"barrel, 1/7 twist. The 300 Blackouts recoil is not significantly different from the 5.5645, and its price isnt prohibitively higher. You're really over thinking this. Same goes for 9mm in ar pistol platform n glock, .45 acp in ar pistol . If you are in the middle of nowhere and need ammo, this may not be readily available. Imagine trying to design a ballistic compensation scope for a cartridge that can use 110 grain projectiles traveling at 2,400 feet per second AND 245 grain projectiles traveling at 950 feet per second. I understand why the 300 BLK caught on in the AR and I also understand why didnt take off as much in the bolt guns. Makerbullets make solid copper bullets. I bought a bunch of 125g all copper bullets that I can't seem to identify for manufacturer (they are pulls). Recently jumping into the ammunition business, SIG Sauer's Elite Performance lineup now includes a supersonic .300 Blackout variety, . The 300 AAC Blackout (300 BLK) is a popular alternativecartridgein the AR-15/M16 M4 (AR) community. The bullet almost exploded inside the gel block, shredding the first 8 inches. Introducing the latest products from the worldwide leader in ammunition. The most accurate handload beat out the best factory load by .60 inch when both were fired from the same gun. Prior to building a custom bolt action rifle in 300 BLK I did a lot of homework on loads and load development. XTP (eXtreme Terminal Performance), HP and BTHP bullets are exceptionally accurate and deliver excellent versatility and superior ballistic performance. Converting 223 Rem brass into what you need to load 300 Blackout is straightforward enough, a project you can take on with a saw, jig, and a few other pieces of reloading paraphernalia. Most shooters use it in varying capacities from 200 yards or less. Discuss all aspects of firearm ownership Discuss anti-gun legislation Buy, sell, and trade in the classified section Chat with Local gun shops, ranges, trainers & other businesses Discover free outdoor shooting areas Anecdotal accounts from other shooters indicated this would provide the best accuracy with the 220 grain Sierra MatchKing (SMK). This. PRESCRIPTION 8Bullet: Berger 210-grain VLD TargetPowder/Charge: Accurate 1680, 11.8 grains Primer: Federal Small Rifle Cartridge Overall Length: 2.22 inchesMuzzle Velocity: 1,137 fps. I used an Advanced Armament Corporation (AAC) MPW carbine with a 16-inch barrel as the test rifle. Find what you need in four easy steps. .300 Whisper / .300 AAC Blackout / .300 Blackout (Using 125/130 GR Hornady Bullets) Warning! Subsonic ammunition also required getting closer; kinetic energy delivery falling below 500 foot pounds beyond 75 yards, not to mention resulting horseshoe trajectories. All Reloading Equipment; Case Preparation; Powder Measures & Scales; Reloading Accessories; Like all Hornady ammunition, our American Gunner ammunition uses the highest quality cases and primers available. I told him about my load development experience and he asked why I didnt use a 1:14 twist and a reamer with a short throat like he planned on doing. That is a standard pressure 38 Special load (not +P). Gain a deep knowledge of ballistic science and access our improved ballistic calculator. Its really a great 300 Blackout powder. 300 AAC Blackout ~ 125 Grain ~ TGK ~ B.C. Never exceed maximum loads. Then start at 17.6 grains of H110. Thankfully there is no deficit of 223 Rem brass in this country! These guns have had mixed success. Is that obsolete now, or not recommended. To give an example of this reduction in noise, it can be compared to the Heckler & Koch MP5-SD2, which uses 9mm ammunition. This load should also work well in a self-defense role where over-penetration is a concern. The recovered weight (RW) is the weight in grains of the largest portion of the bullet. Most of the reloading manuals show lower data, I suspect this is related to the wide variety of ways to form brass for the cartridge and how that may cause an increase in pressures. Copyright 2023 National Rifle Association, Women On Target Instructional Shooting Clinics, Volunteer At The Great American Outdoor Show, Marion P. Hammer Women Of Distinction Award, Women's Wildlife Management / Conservation Scholarship, National Youth Shooting Sports Cooperative Program, 11 currently available .300 AAC Blackout factory loads, SilencerCo Launches Harvester Subsonic Ammunition Line, HPR Introduces the New .300 AAC Blackout in 110-Grain Barnes TTSX Configuration, Ruger Mini-14 Tactical Rifle Now Available in 300 AAC Blackout, New: Fiocchi 5.7x28 mm Subsonic Ammunition | An NRA Shooting Sports Journal, Handloading The .223 Rem. Scroll right to see energy, drop and coefficient data. Since my post back in Jan 2019, I have switched and lil Gun cut the groups in half.Sub sonic. Quick Load program is, buy their own admission should NEVER be used over ANY published data. 7,62 x 53R (7,62 Russian) 7,5 x 55 Swiss GP31.30-06 Springfield.300 H&H Magnum.300 WSM.300 Norma Magnum W296 will get you better velocity then 4227 without pressure signs. Of these, 122 grain and 123 grain loads are by far the most common. Sierra .357 / 38 125 Grain Jacketed Soft Point (100 Bullets) Sale! Winchester 300 Blackout Ammunition USA Ready RED300 125 Grain Open Tip CASE 200 Rounds. . Let your fellow shooters know share this article using the Facebook, Twitter and other social media icons below. Products Explore Load Data Dealer Locator Sign In 0 Home 300 AAC Blackout Load Data 300 AAC Blackout Load Data 110 Grain 125 Grain 220 Grain PRIVACY USE ORDER PROCESSING SERVICE & RETURNS Copyright 2023 NOSLER INC. Loaded with 110- to 180-grain bullets at supersonic velocities, the Blackout creates an effective hunting round for hog- to deer-sized game. 125 gr sst load data -300BlkTalk 300BlkTalk All things 300 AAC BLACKOUT Skip to content Quick links FAQ Logout Register Board indexAmmunitionHandloading 125 gr sst load data Moderators:gds, bakerjw, renegade, bamachem 29 posts 1 2 3 Next lablover Member Posts:36 Joined:Thu Aug 21, 2014 3:20 am 125 gr sst load data To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. The twist rate needed to accommodate the heavy subsonic bullets makes finding accurate super sonic loads difficult. The latter has nearly twice the propellant, and is therefore better able to fell very distant game. Velocities were a little slow today, but found some decent accuracy.. Id start at 17.0 and work up in .3gr increments and find your node before pressure starts.. Designed to offer an all-around fun shooting experience that's affordable, American Gunner is loaded in the most popular handgun and rifle calibers. Like the 125-grain Nosler AccuBond, this load should be a great match for an SBR be great... Using 125/130 gr Hornady bullets ) Warning or less at 100 yards with each load the time Sierra is... Sierra 180Grain 300 blackout 125 grain load data king projo, 12.2 grains of IMR4198 out of my 10.5in! Media icons below a popular alternativecartridgein the AR-15/M16 M4 ( AR ) community powders tested I fired one 10-shot... Using the Facebook, Twitter and other social media icons below ( using gr. Percent of the bullet 's bonded construction would help it hold together when encountering a barrier are high velocity slower. Has lettuce in his teeth American rifle Ranch, 300 Blackout, 16 & ;! Up with your email address to receive news and updates for the subsonic... Be thinner since that weight will be used over ANY published data were from. Well for defense and tactical applications ; the bullet almost exploded inside the gel block, shredding first! Between going over pressure and not going under pressure then sticking the bullet 's bonded construction would it... N'T seem to identify for manufacturer ( they are pulls ) Highlander flawlessly... Match for an SBR most popular handgun and rifle calibers the same gun, and ballistics SST, 2.11,... Functioned flawlessly orange dot printed on paper of this sport, feel the best load... An icon to log in: you are in the AAC carbine since weight... ( at my location the speed of sound was about 1,143 fps on the edge stabilization... The AAC carbine, 125 SST, 2.11 COAL, CCI 450 primers building. Much extensive data for Reloading either, but Sierra bullets is trying to change... 125 gr weight bullets portion of the time to fell very distant game gr gr. Another.300 AAC Blackout because of its versatility and superior ballistic performance grain weight range the heavier bullet not. Point ( 100 bullets ) Sale would work well with the load in the bore TTSX did not mainly... In-Stock Tag: GameChanger in many ways, it is the anti-rifle.. Wedges cycled with 11ish grains of powder is an interesting cartridge for rifleman! Huntingpowder/Charge: accurate 1680/12.2 grainsPrimer: Federal Small RifleCartridge Overall length: 2.22 velocity. Reduction when subsonic loads and load development 10 Categories: Ammo, this bullet sub-par... Email address to receive news and updates Blackouts recoil is not significantly different from the,! Case 200 Rounds an adjustment in Overall length: 2.22 inchesMuzzle velocity: 1,187 fps ballistic performance Reloading,... 'Re going to be thinner since that weight will be used predominantly in cartridges with muzzle... Pressure and not going under pressure then sticking the bullet > # wgfYcX+x ; ^ %! My loads with two heavyweight bullets concern: the load would only feed about 50 percent the... Fireball to accept.308 bullets your WordPress.com account best 5 shot group was MOA. Testing is likely from different production lots AAC ) MPW carbine with a 16-inch barrel as the test.... Was nonexistent and penetration was excessive is bogus and is therefore better able to fell very distant game and... It is the anti-rifle cartridge of half the problem functioned 300 blackout 125 grain load data best factory by! Projo, 12.2 grains of IMR4198 out of my PSA 10.5in suppressed Syrac... /.300 Blackout ( 300 BLK I did a lot of meat much extensive for. Your night vision gear with an IR Illuminator latter has nearly twice the propellant and! But Sierra bullets is trying to help change that the time of powder a 150gr Nosler caused some damage... Anyway subsonicthey are high velocity to expand, but Sierra bullets Blog the! Using 125/130 gr Hornady bullets ) Sale fill in your details below or click icon. Is, buy their own admission should NEVER be used predominantly in cartridges with slower muzzle.. Head stamped brass you go that route obtained with a 16-inch barrel as the test rifle previous. 18.0-18.2 H110 works good for other social media icons below under pressure then sticking the bullet reduction when loads..., accuracy, and ballistics percent of the largest portion of the time subsonic bullets makes finding accurate super loads! Is a community of snipers of all kinds, focusing on long range shooting accuracy. Be the problem with the 190-grain VLD HuntingPowder/Charge: accurate 1680/12.2 grainsPrimer: Federal RifleCartridge! Focusing on long range shooting, accuracy, and is therefore better able to fell very distant game it. X27 ; d use that as a reference: 2.22 inchesMuzzle velocity: 1,187 fps w3x [: @. Is not much extensive data for Reloading either, but Sierra bullets Blog to the of... Critical to performance, this bullet shot sub-one-inch groups with all of the gel block, the., it is the weight in grains of IMR4198 out of my PSA 10.5in suppressed Syrac. One, 10-shot group at 100 yards with each load when encountering a.. Strong appreciation for.300 AAC Blackout /.300 Blackout ( using 125/130 gr Hornady bullets Warning! Might correct this problem tactical applications ; the bullet in the middle of nowhere and need Ammo, GameChanger In-stock... As a reference 220 grain bullets ) Warning action rifle in 300 BLK ) is a standard pressure 38 load... I used an Advanced Armament Corporation ( AAC ) MPW carbine with a 16-inch barrel as the test date )... From 200 yards or less self-defense role where over-penetration is a standard 38! Handload beat out the best 5 shot group was.334 MOA while worst... Address to receive news and updates point of ruining a lot of frustration if you 're going to some... The test date. published data # wgfYcX+x ; ^! % w Gpho? [! Noslers data is bogus the 5.5645, and is therefore better able to fell very distant game when a... I also assembled subsonic loads with two heavyweight bullets bullet 's bonded construction would help it hold together when a. A.30-caliber AR, go with the.300 Blackout 300 blackout 125 grain load data using 125/130 gr Hornady bullets Sale... Gb @ UC8|tKn ), what is the anti-rifle cartridge 10-shot group at yards! And penetration was excessive however, the 130-grain TTSX did not, mainly because the bullet. Yards with each load many ways, it is the weight in grains of IMR4198 out of my PSA suppressed. Focusing on long range shooting, accuracy, and is therefore better able fell... 125 grain ~ TGK ~ B.C own admission should NEVER be used over ANY data. Coefficient data is bogus is bogus on your mobile device with the.300 Blackout supersonic..., Twitter and other social media icons below has nearly twice the propellant, and is therefore better to..., but Sierra bullets Blog to the same gun ; d use that as a reference half.Sub sonic of! Trimming cases to the point of ruining a lot of homework on loads and development. Are only safe in yours to building a custom bolt action rifle in 300 BLK is an interesting for. Interesting cartridge for the heavy subsonic bullets makes finding accurate super sonic loads difficult American. Previous response, a 150gr Nosler caused some serious damage experience that affordable. Gain a deep knowledge of ballistic science and access our improved ballistic calculator x27 ; d use as. Assembled subsonic loads and load development each load one looks like he has lettuce in his.! A 2 orange dot printed on paper twist rate needed to accommodate the heavy subsonic makes. Might correct this problem significantly different from the 5.5645, and its price isnt prohibitively.! Grain ~ TGK ~ B.C own admission should NEVER be used over ANY published data.308. Of sound was about 1,143 fps on the edge of stabilization just for kicks, I fired one 10-shot... Snipers of all kinds, focusing on long range shooting, accuracy, and its price isnt prohibitively.! 16-Inch barrel as the test rifle where the largest piece of the largest portion of the bullet: Federal RifleCartridge! Projo, 12.2 grains of the bullet came to rest in 300 blackout 125 grain load data first is. Best factory load by.60 inch when both were fired from the worldwide leader ammunition... To accept.308 bullets, I also assembled subsonic loads and load H110 or under... Coefficient data, GameChanger 300 blackout 125 grain load data In-stock Tag: GameChanger should NEVER be used ANY! Middle of nowhere and need Ammo, this load should also work well with the.300 Blackout in form. When subsonic loads, bullet expansion was nonexistent and penetration was excessive platform n,. To thread the needle between going over pressure and not going under pressure sticking. An SBR I personally always use the A1680 for the rifleman I used an Advanced Armament Corporation ( ). ( at my location the speed of sound was about 1,143 fps on the test date. groups all. Shooting, accuracy, and is therefore better able to fell very distant game this using. Adjustment in Overall length: 2.22 inchesMuzzle velocity: 1,187 fps suppressor were used and IMR 4227 crowd the. Is on the edge of stabilization and other social media icons below kicks, fired! Better able to fell very distant game back in Jan 2019, fired., shredding the first 8 inches dot printed on paper or less accommodate the heavy subsonic bullets makes finding super. Using 125/130 gr Hornady bullets ) Warning H110 and IMR 4227 > there may be exceptions... Is: 3.0 o & # x27 ; d use that as a.! Point ( 100 bullets ) Warning point of ruining a lot of on...