Anyone reload 300 blackout

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I use W296/H110 with 110 to 130 grain bullets and Accurate 1680 with 150-155 grain bullets.

I had good luck with Alliant 2400 but not any significantly different performance from W296/H110 and I really do not need another powder in my inventory.

I shoot only supersonic.

Folks have good success with many other powders in the 300 BLK.
 
I love 300MP for my deer hunting loads, 125 SST. Supposedly it burns cleaner and more efficient but its still new and I havent done much with it lately to elaborate more. Lil Gun is supposed to be a great do all for subs and supers too
 
I'll play too....

My loads are safe in my weapon/s the way I load them. Never use loading data from an unconfirmed source and even double check that.

Cal Bullet B-weight Powder P-weight M-Velocity weapon date of test OAL
*300 V-Max 110 630 17.2 2328.5 DSA 10/9/2012 2.010in
300 V-Max 110 LtGun 18.3 2204.5 DSA 10/9/2012 2.010in
300 OTM 125 H110 17.8 2131 DSA 5/8/2012 2.182in
300 M2 GI 147 H110 16.6 1945 DSA 5/8/2012 2.065in
*300 M2 GI 147 LtGun 15 1870 DSA 9/22/2012 2.160in
300 InterBond 150 H110 16.6 1908.2 DSA 10/9/2012 2.069in


And my all time fave:
*300 Lt cut 30 130 2400 15.1 1959.35 DSA 6/26/2015 2.024 in Cast, sized .311, powder coated, sized
*300 Lt cut 30 130 LtGun 17.5 2124.444444 DSA on going 2.03 in Cast, sized .311, powder coated, sized
**300 Lt cut 30 130 630 15.3 1978 DSA 7/4/2014 2.024 in Cast, sized .311, powder coated, sized


Notes: An '*' marks the most accurate loads, velocities are at 10 feet and not less than 15 samples are needed for the velocity to be displayed. The date listed is the first sample date. barrel is 16 inches and I have no idea about the diameter of the gas port. My brass is mostly mixed GI, Lake City, 5.56 brass that I cut down and formed. I normally get 25 and more loadings in .300 Black, on top of how ever many times the brass was loaded as .223/5.56. All primers are CCI 400s.

With my weapon, the faster the bullet, the greater the grouping. The listings are for the best groupings, not velocities. I have a fair amount of Olin 630. It hasn't been made for years and years. It burns hot, has some temp spread but is far from the reported charge sensitive nature of 296/H110. (All though, I have never had any problems with 296/H110.)

Load with care,
 
Consult your data manuals first
RP 7 1/2 primers in all-----LC once fired converted cases in all
147 FMJ pulled or new----16.5 grains H110--oal 2.130-2.140"---1950-1975 fps
Nosler 125 BT----17.5 H110----2.060" oal---2155-2159 fps (17.8 is maximum
Favorite load: Hornady 110 V-Max 19.5 H110---2367-2376 fps
All in a 16" AR 300 BLK
 
I have one load that works well in every rifle I had shot it out of. I use a Model 7 AAC Blackout. 16.5 (over max) of H110 and 150 grain Hornady FMJ. If you search the internet you can see many using this load, it was developed before data existed. So you may want to tone it down a bit for your rifle. The powder maker recommends 16.2 as max for H110 with the bullet used.
 
oldpapps, I see that your using Lil Gun for your 150's? "LtGun" equals "Lil Gun". You have that marked as your most accurate load. I might have to try that one.
 
dh1633pm,

Yes 'ltgun' is 'Little Gun'. The field width was set at 5 for powder type back when I was using Access Database and has carried over into Excel. 'LGun', 'LlGun' or any other variables didn't work as well as 'LtGun' and in some entries I have no caps.

I found that of the lots of GI 147 grain FMJ pulls that I have shot, none were overly accurate, but they were the cheapest I could find too. My cast bullets are much better. Am I bragging on myself? :)
 
I only shoot supers and primarily 85% Cast bullets.

155gr LEE sp sized to .310 and gas checked ahead of 16.5 gr RL-7 is my main load.
Substitute 16.5 gr H110 if needed.

For jacketed I shoot ether 124 gr FMJ or SP ahead of 17.5gr of H110 for target shooting. For Hunting I use 17.5 gr Lil Gun.
Lil Gun gets the most FPS for the same loading.
 
Thanks Oldpapps. You aren't bragging. I have a reloading press and some Lil Gun, I may work up a couple.

I came about my favorite load when a friend gave me some reloads. They are really accurate in his rifle. And like any safe person I asked his load. He couldn't remember. So I put them in my rifle and shot them ....NOT. I took them home to figure it out for myself. The bullet weighed in at 150. Looked like a SMK by the looks. I dumped the powder and each was 16.5 grains. I looked at the powder and said to myself, that looks like H110. I texted my friend and asked what he used for blackout. He said mostly H110. I checked the manuals and the reloading sites and found a lot of info on that load. Put them back together with fresh powder, just because it looks like H110 doesn't mean its H110.

They shot wonderfully in my Remington Model 7 AAC Blackout. So its a keeper load.
 
dh1633pm,

When I started loading for the .300 Black, there was little loading data and most of it was from experimenters. The older 'Whisper' loads did provide some tested sources.
I first used 296, same as H110, and then moved to actual H110 with 110 grain V-Maxs. Played with the 130 gain OTM but they were costly in my view. Eventually I worked out loadings with 2400 and Olin 630, talk about 'pucker factor'! I had a Lee 155 GC mold shaved to remove the gas check portion and the end weight, with my hard alloy, is a hair under 130 grains. I powder coat them and with just below fastest loads get the best accuracy. Not as good as I get with 'DogTown' HPs out of any of my .223/5.56s, but very nice for an old man that has trouble seeing, ocular degeneration.

My view is an accurate round is a combination of just about everything. And then it must be adjusted to work the best. Little things like seating depth can make a big change in the round, velocity and accuracy.

Getting 'there' is the fun part for me. Just what enjoyment would I get if I just ordered a box of ammo and shot it? I role my own and get not only to shoot it many more times but also get to fine tune the load with every re-load. Oh, exactly 11 years ago today was my first day of retirement. Boy do I feel old... Well, not any older than yesterday. I didn't officially retire until the 2nd of January, lots of vacation time to use up.
 
4198 with 208 Amax or HPBT's. NO recoil, low pressure, and excellent accuracy.
 
oldpapps, you use an AR to shoot your loads? Reloading gives you the ability to put a lot of variables to work. I found that in the bolt gun I can load them longer and get better results. The rifle does tend to like them on the hotter side. I bought a lead mold for the blackout, but I have never cast any yet. I think its a 220 grain mold. One day i will get to it. I also have never shot anything lower than 120 and nothing higher than 168.
 
dh1633pm,

I bought a complete DSA upper {16 inch SS}, with the thought of just switching uppers with one of my ARs in .223/5.56. That was the idea. It didn't work, I wanted both fully operational. I build another lower.

I have never shot a commercially made round in my .300 Blackout. I have only shot supers but have been thinking about trying some subs. And toyed with the idea of getting a 'can', but at my age, I'm leaning toward getting into one of those 'Trust' things so my son will have no problems when I move on to the big range.

I tried a few, 4, I think, of 93 grain .30 cal Luger type FMJ RN. I ended up having to single feed them, just too short to feed from a magazine. That was the lightest I have tried and only bullet design that I didn't get to feed. The heaviest I've shot, so far, is several 220 grain Rem soft points. They did well but I felt they were running a little on the high side in pressure to cycle my weapon. Maybe not, I'm more than a little cautious and there was no data available at the time. The only lead I have used is some 180 grain {with my alloy they run 172 gains} round nose GC. They fed OK but I didn't care for them. I had a Lee 155 grain GC mold shaved to remove the gas check portion and cast 130 grain bullets with it. These are my preferred bullets. I powder coat them and as I have many, many pounds of lead alloy from the mid to late 1970's that I made up, I figure these bullets cost me only time and I have a lot of that now. I have pushed these same little 30s out of a .308/7.62 at over 2750 FPS with suitable results, M1A and a bolt. i have fired then out of one of my Garands and after getting the bullet walk out problem worked out, they do well, not overly accurate but then I haven't worked on them for that. All of my '06s are original GI types and I don't shoot them often.

Nuff ramblings for now,
 
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