All shooting was done prone, from a bipod with rear bag. 300 BLK, Cartridge Selection, Reloading 110: Sierra: RN Pro-Hunter: Lil Gun: 16: 2150: 1129: 18.5: 2400: 1407 #2100: 1.845: 1x8” Rem 7 ½ Sierra Jacketed SP BC: 0.338 2.100” OAL SD: 0.226 Sugg Max StartingVelocity Pressure Load Velocity Pressure Powder Grains FPS Grains H110 Lil Gun IMR4227 Enforcer Trail Boss 2.065” min OAL; 2.100 SD: 0.166 2.070” min OAL; 2.100 SD: 0.172 110 gr. Using bullets from Hornady V-Max, Berger TGT FB, Nosler BT, Speer HP, Sierra HPBT, Nosler HPBT, Hornady InterBond, Hornady BTHP, Speer SP, Hornady A-Max, Berger TACT. Kel-Tec RDB Survival Review: A Better Bang Stick? The cartridge simply cannot push them fast enough to ensure expansion. Groups were 5 shots (unless otherwise indicated) at 100 yards. The short case length doesn’t necessarily effect feeding, since the bullet of the loaded cartridge is similar in length to the 223 Remington, but it can make ejection difficult from many bolt action rifles. They instead heavily based their new cartridge on SSK Industries’ 300 Whisper. A mystique surrounds the.300 BLK (AAC Blackout), and it overshadows this utility player’s ability to deliver All-Star numbers in a variety of roles. In supersonic loads, 150-grain bullets are on the heavy side for the.300 Blackout. I like my custom 300 BLK. Nick Leghorn - October 12, 2012. These guns have had mixed success. Shot a few deer with it and it seems to be a great deer load. Consult appropriate load manuals prior to developing your own handloads. A few manufacturers offer bolt action rifles chambered in the 300 BLK. There is very little data available for this cartridge and I cant find any data for cast loads. The 300 Blackout’s recoil is not significantly different from the 5.56×45, and its price isn’t prohibitively higher. Load development for the bolt-action rifle included bullets from 110 up to 220 grains and velocities from 2,400 fps down to less than 900. The 300 Blackout’s .30 caliber bullet can be made especially long, and as the result may weigh up to 220 grains — quadruple the weight of the typical 223 Rem round’s. Thanks for posting your data. Those bullets wouldn't shoot worth a flip normally but on suggestions from a cast-bullet shooter, I loaded them backwards in the case (pointy end inside the case) and had several groups sub-1" at 100 yds. I have loaded from 110 to 220 grains and have never had the cycling issues some people have reported while shooting subs. #2115 .308” 150 gr. A supersonic 300 Blackout round with a 110 grain bullet has a muzzle velocity approximately 1,000 fps slower than that of a 223 Rem, giving it a significantly faster bullet drop. 300 AAC Blackout Cast bullet load data June 28, 2016 June 29, 2016 JP All of my load data is published as is with no promise of anything. H110 is better suited for supersonic loads, but as you noticed you were able to get it to work for subs. Some hunters speculated that it would sound the death knell for 300 Blackout due to the fact that hunters in some north eastern and midwestern states were limited to hunting deer with a straight wall cartridge. Shot a few deer with it and it seems to be a great deer load. Im running a 9.5 Rainier barrel and an Octaine 45 suppressor if that makes any difference. Check For Best Price. Reading a few different reports of accuracy issues with the cartridge in general (you’ll notice many of the sub sonic groups published online are shot at 25 yards!- more on this later), I came to the realization, that most of the “good” groups found with the cartridge were shot with either a special chamber (not a 300 BLK which has a long throat to accommodate the heavy bullets) or a slower twist rate to work well with the light bullets (SAAMI specifies a 1:8″ twist, click link). The more we all know, the better organized and stronger the shooting and hunting community will be. I think there was some super sonic data with the heavies. 0 4 5.378.376 361. Since I wasn’t trying to build a wildcat 300-221, which is what a modified 300 BLK would effectively be, I went with a standard chamber cut by a Manson Reamer. Hogdon's Web site doesn't list loads for 245gr bullets, though they do list data for 230gr bullets that I could work up from. The .300 Blackout has seen something of an interesting road as far as reloading is concerned. 10.0 gr. Alliant Powder – Power Pro 300-mp Check For Best Price. Most of the load data I found on the internet before I got into 300blk used H110, so that's what I ended up using. the 300 BLK doesn't have enough case capacity to drive heavy bullets "fast" whilst keeping pressures safe, if y "fast" you mean 2or 3 thousand feet per second. After investigation, AAC found the 7.62×39 case’s aggressive taper too extreme for a standard M4 magazine to accommodate. The range of the number of grains of H110 to load into a .300 AAC Blackout case for a 150 grain boat tail round 16 minimum grains to 17.2 maximim grains Overall round length of a .300 AAC Blackout round with a 150 grain boat tail jacketed round 2.1" Any other pertinent data to sucessuly reload a 150 grain boat tail round into a .300 AAC Blackout with H110 powder. The 300 Blackout’s sleeker bullet has a higher. Although functionally identical to the 300 Whisper, the 300 AAC Blackout is its own SAAMI standardized cartridge. The design of the cartridge itself is a bit of an issue as well. 2. All 300 Blackout rifles that will cycle a subsonic round, without a suppressor are over gassed when shooting a super and more so supers suppressed. A 300 Blackout bullet fired from a 7-inch barrel (like you’d find on the Q Honey Badger) has almost the same muzzle energy as a 5.56 bullet fired from a 10.5-inch barrel. data **includes new A-Tip® Match load data GMX® 30-06 Springfield 125 gr. .300 AAC Blackout - Manufacturer Loading Data. Pistol; Rifle; Cowboy; GR. Hornady V-Max BC: 0.290 115 gr. The latest 300 BLK carbine adding to my load database is a DoubleStar wearing a 16-inch barrel. Im starting to load 300 blackout and looking for the best bullet weight, powder type/grains for sub sonic suppressed. Your H110 load data for the 150g FMJ is almost identical to the load I worked up for my 300 BLK. […], In Marine Corps boot camp we spent a week snapping in on a white barrel with small silhouette targets painted on it. Also note when examining published materials you will find a wide range of loads that are deemed safe. Advanced Armament Corporation began developing a .30 caliber subsonic cartridge optimized for the M4 platform in 2009. 53. Any 300 Blackout load, that is near max SAMMI pressure in a rifle upper, will still be max pressure in a pistol upper. Remington Model Seven (Model 7) Versus The Model 700, AR-180 Magazines: Modifying AR-15/M16 M4 magazines to fit an AR-180, Add a detachable magazine to your Remington 700 by installing Surgeon bottom metal, “Blueprinting” (Truing) a Remington 700 Action, Building a Custom Precision Rifle: Deviant 6.5×47 Lapua. Not sure how it would work in a 300 BO AR but I used to load 30.06 "gallery loads", 147gr FMJBT "ball". 300 Blackout Sierra 150 gr. Use at your own risk. For subsonic I experimented with H4227 and have decent results. 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 carbines with only a barrel change. Here is what I found with a 16" barrel and 220gr. 300 BLK Supersonic Hunting Load with 120gr Barnes TAC-TXPowder is Winchester 296Second channel here: https://www.youtube.com/channel/UCXFoIYwcyKXE99E7XQ_LslQ SP Super Sonic Hunting Load Make sure you watch till the end to get the full story! Post was not sent - check your email addresses! I think there is several members here that shoot the 300 blackout and I was hoping some of y'all would share some cast load data. which is why I mentioned that I had pushed them up to 1,200 fps which is a supersonic load. With supersonic rounds for maximum muzzle velocity to subsonic loads that quiet the roar by slowing the pace. Such large projectiles convey a subsonic muzzle velocity that is accompanied by a quiet report. Pistol gas systems are over gassed by definition. The case manufacturer, Nosler or Jagemann (JAG), is listed on the table below. 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. Any 300 Blackout load, that is near max SAMMI pressure in a rifle upper, will still be max pressure in a pistol upper. The twist rate needed to accommodate the heavy subsonic bullets makes finding accurate super sonic loads difficult. You use supersonic rounds. Review: Dry practice with a scoped rifle. I’m only sharing this load information here for illustrative purposes to point out the diversity of the 300 AAC Blackout. When reloading, always obtain your load data directly from the source. Yes. This showcases the dual purpose of the round. 3 6 8 1. fmjbt c.o.a.l. The 300 AAC Blackout delivers ballistic performance comparable to 7.62×39, yet possesses a base diameter that optimizes functionality in an AR-type platform. WhatsApp. There's no way around that. I can’t be responsible for typos or other errors here. One has a 10" barrel and the other a 16" barrel. Loaded with 110- to 180-grain bullets at supersonic speeds, Blackout creates an effective hunting round for pigs up to deer-sized games. spitzer c.o.a.l. With supersonic rounds for maximum muzzle velocity to subsonic loads that quiet the roar by slowing the pace. Loading 300BLK - Episode 4Working up a load for 168gr Hornady A-MAX bullets using Winchester 296 and IMR 4227 The ability to shoot a wide range of bullets is a mixed blessing. I've read a lot of people use Lil'Gun for .300 Blackout, but I've also read that it doesn't always give full function eg bolt hold-open. 300 AAC Blackout Load Data from Sierra Bullets. Reloading 300 Blackout: DoubleStar. AR-platform rifles optimized to run subsonic 300 Blackout tend to fire supersonic ammo poorly. On the up side, firing the 300 BLK from a precision rifle is a pleasure. 300 aac blackout rifle reloading data 5 300 aac blackout rifle reloading data 6 indicates maximum load - use caution loads less than minimum charges shown are not recommended. My load is 16.2 grains of H110 with an OAL of 2.060″ which produced a 1.5″ three shot group at 100 yards. Facebook refuses to Boost corn muffin post for gun blog! Big-name makers like Remington and Ruger have also brought out bolt-action rifles chambered for the 300 Blackout. These are powders that are typically marketed to the magnum pistol crowd, not the rifle folks. sierra round nose, OAL was 2.16. The loads shown below are only considered safe in the test gun! Savage B22 Precision Rimfire Rifle Review, Beretta M1951 mystery- cutting our way to the truth, Gunsmithing: replacing a curved steel butt plate with a rubber recoil pad, Project Guns- Gunsmithing articles and posts, check out my 300 AAC Blackout Review from September 2012, 125, 135, 175 and 220 grain Sierra MatchKings, AICS style 223 magazine from Accurate Mag, Starline 6.5 Creedmoor Brass Endurance Testing- firing the same cases 15 times. Rounds were fed from a AICS style 223 magazine from Accurate Mag. The research was divided into supersonic and subsonic loads with the basic goal of finding the best accuracy combinations for each. Powders include IMR, … I will be starting with boolits ranging from 150gr to 200gr. *Shaded column displays subsonic load data. That model handles both supersonic and subsonic 300 BLK loads with no problem. There's no way around that. = 885, 803, 969 fps. GMX® 300 PRC 178-250 gr. = 885, 803, 969 fps. Anyone using 2400 to load 300 Blackout? Note: In the target above, the groups labeled “6.5 123” were shot with a 6.5 Creedmoor and are not relevant to this post. 300 Blackout … M A X I M U M 1. Im running a 9.5 Rainier barrel and an Octaine 45 suppressor if that makes any difference. The goal being to see which dies resized the cases to the optimal inside diameter for ideal bullet pull without over-working the brass. The gun doesn’t move, there is even less recoil than an AR because you don’t have the mass of the bolt carrier reciprocating in the rifle. sierra round nose, OAL was 2.16. At the same time, all the load data I've ever found for 300 BLK was tested with short barrels ranging in length from 9" - 11", causing the need for a quick burn. Hornady 110-grain V-Max. The target was a 2″ orange dot printed on paper. Not sure how it would work in a 300 BO AR but I used to load 30.06 "gallery loads", 147gr FMJBT "ball". On some guns, the short case can simply snap out from under the extractor if using a constant tension spring type ejector. I load 17.5 grains of H110 for the 300 Blackout, CCI 400 primers OAL 2.060. However, the 300 Blackout’s heavier bullet compensates for its lesser speed to grant it an effective muzzle energy, and its 0.84” greater diameter enables it to inflict a wider wound channel. The entire platoon would gather around the barrel in either prone, sitting, kneeling […]. Rather than having a steep shoulder and overbore case, like the 20 Vartarg (a 221 Remington necked down to 20 caliber), it has a relatively straight design that requires fast magnum pistol powders. For lightweight supersonic loads IMR 4227, Hodgdon CFE Black, Hodgdon H110, Winchester 296 and Alliant 2400 are good options. While the gel block above is a supersonic impact from a .308 you still get the idea that this could be a sweet BLK projectile as a sub or a super. Forster CO-AX reloading press: REVIEW- Is it the best press for precision rifle? A supersonic 300 Blackout round with a 110 grain bullet has a muzzle velocity approximately 1,000 fps slower than that of a 223 Rem, giving it a significantly faster bullet drop. Hornady® Subsonic Ammunition — designed for accuracy and performance below the speed of sound — now comes in both rifle and handgun loads. I am with you on only supersonic loads for 300 blk. I've worked up some subsonic loads for my two 300 blackouts. The goal being to see which dies resized the cases to the optimal inside diameter for ideal bullet pull without over-working the brass. Specifications. Those bullets wouldn't shoot worth a flip normally but on suggestions from a cast-bullet shooter, I loaded them backwards in the case (pointy end … 7mm Remington Ultra Magnum Load Data; 28 Nosler Load Data; 300 AAC Blackout Load Data; 30-30 Winchester Load Data; 30/40 Krag Load Data; 308 Marlin Express Load Data; 300 Savage Load Data; 308 Winchester Load Data; 30 Thompson Center Load Data; 30-06 Springfield Load Data; 300 Ruger Compact Magnum (RCM) Load Data; 308 Norma Magnum Load Data 300 AAC Blackout (7.62 x 35 mm) (300 BLK) 125 gr. with some careful load development, you MIGHT get a 200 gr bullet near 1.800 or so fps, but that is a WAG on my part. I only tried it a little and gave up on it, saving my H110 for super loads. Sierra Jacketed SP BC: 0.338 2.100” OAL SD: 0.226 Sugg Max StartingVelocity Pressure Load Velocity Pressure Powder Grains FPS Grains Re: 300 BLK Load Data I resized Remington 300 AAC BLACKOUT cases with each of the following dies, and then put a metric pin gauge in each, to see the largest pin that would fit. Take a look at some legitimate load development and testing and you’ll start to notice that it is very hard to get a 300 BLK to shoot consistently well with both a subsonic and supersonic cartridges from the same gun- a fact that has led a few major manufacturers … Decently accurate off hand, some ejected,but won't pick up next. Subsonic Handgun utilizes tried-and-true XTP® bullets that expand reliably at subsonic velocities. They first looked to the 7.62×39 for inspiration. Essentially the same round. Pinterest . 2 6 0. I am waiting till I find some Lil'Gun before loading for lighter bullets. Examining the table above, note the wide range of accuracy, velocity and standard deviation achieved with the different loads. Let your fellow shooters know – share this article using the Facebook, Twitter and other social media icons below. Sierra Bullets has just added extensive load data for the 300 AAC Blackout (300 BLK) cartridge. Indoor Optical Training Aid (I.O.T.A.) The 300 AAC Blackout was standardized from its wildcat predecessor roughly a decade ago and has since become one of the most popular cartridge choices for the AR-15 platform.
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