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Howdy
I had a brief play with BAR and some Sierra 55gn sp.Groups were ok for a goat load but has anybody got decent velocities with this powder?I've had 2900 fps with 2208 and hdy 55gn but that's about as fast as I've pushed them out of a 18" NEA
MARK
I could never get good groups with the NEA and light bullets. Sierra 77 grain SMKs shot 15mm groups all day but I could only get 2500fps with 2208. Never tried BAR and am off 1:7 twist barrels now.
@marky123
How many grains of powder where you using to get to 2900fps?
Belmont data suggest 26.6grs will get you over 3000fps in a 22" barrel.
So 2900fps in an 18" barrel might be as good as you get.
Cheers
Pete
that was the 2208 load Peter
26.4gns of BAR gave 2800fps
i might have a slow barrel mate
.223 loads always give disappointing velocity in military 5.56 barrels. You need to run a longer barrel or make up your own load data to get them going fast. For example last week I chronied a 55gr load out of my 16" M4. 25.5gr of BM2 was giving me 2650fps on average.
Compare that to proper mil spec loads that can achieve 3000fps out of the same type of barrel. They are loaded much hotter.
that's the .223/5.56mm difference.
Was there any pressure signs at 26.4grns?Quote:
Originally Posted by marky123
Is their any case capacity remaining?
Another 0.2grns might make a slight difference.
Also the figures quoted by Belmont are book maximum ..... Not real world maximum.
The only alternative is to try different powders ..... W748 or H322 or H335 For instance.
Cheers
Pete
I thought the Belmont stuff was just repacked 748, 760 etc
Dunno.Quote:
Originally Posted by Beavis
I thought it fell somewhere between 2206and 2209.
Cheers
Pete
do you regard that as slow or normal for length?Have you pushed it as hard as milspec loads?Quote:
Originally Posted by Beavis
no pressure signs as far as I could see.
I went to 26.7 and the groups didnt really change any
might go up a bit more
I've pushed loads a few grains over max with no ill results. The max for 748 is around 28 grains with a 55gr, I've seen that in Nick Harvey's load data. Some data is quite a bit lower than that and when I used it found it produced pretty weak loads. Of all the powder I've used 2206H has always given the best MV irrespective of barrel length or projectile. I was honestly abit bewildered to see the above load I mentioned going so slow.
@marky123
Is there any more room left in your case?
Might not want to compress the load.
Belmonts web page says Action Rifle Powder sits between 2206H and 2208
I got plenty of W748 & BM2 if your keen to try some.
Cheers
Pete
With a 1:7 26" barrel using 24.7 gr of 2208 for 80 gr A-Max I get 2840 fps. Good enough for targets out to 1000 yards.
@marky123
Take a look at Reloader7 too.
There's plenty of information on the Internet suggesting this powder in a 1 in 7 barrelled AR15 and 55gr projectiles can easily exceed 3000fps.
And we all know that if its on the Internet it must be true aye. ;)
Cheers
Pete
Wouldnt 55 grainers over stabilise in a 1in 7 twist?
Yes.Quote:
Originally Posted by matto1234
Any with a thin jacket might disintergrate due to the rotational forces
Cheers
Pete
Also I understood that some have a very long throat to allow for heavier bullets. Hence a long jump for lighter ones.
Also wont over spinning a light bullet exaggerate it's imperfections? Just a thought.
Hey Guys,
I have been using this powder exclusively for myAR15. Its a BCM KMR Recce 16" 1:7 twist, 5.56 chamber.
Belmont Action Rifle (BAR) is a St Marks powder manufactured exclusively for the Military for 5.56 and 7.62. It is 7% faster than WW748 and is colloquially called 747...
My go to load is ADI brass, 26.3 grains BAR, Murom SR mag primer, Hornady bulk 55 grain softpoints with cannelure seated to 2.250" these net me 2950fps.
Interestingly this is also the same load as the H&F bulk packs.
It's bloody accurate in my gun with a 4x Viper PST I am getting 20mm groups for 10 shots and managed to get a 14mm 5 shot group.
Ignore the round below, I adjusted the POI after the group. The squares are 1/4 MOA.
Attachment 50362
Deadly on goats, roos and fallow. I reckon it will do the job on Reds and Sika in the summer.
The hornady pills are affordable and perform.
The ones I recover usually go about 40 grains and about 15mm in diameter.
Pulled this one out of a Big billy, 200m through the chest, both shoulders, lungs and the bottom of the heart. Sitting on the offside under the skin.
Attachment 50361
The BCM cheers @Digit :cool:
Attachment 50359
Here is the Billy, he went 26 inches, my personal best. My mate drilled him in the forehead and it exited his eye (co-ord shoot, always yields better results)
Attachment 50360
Cheers.
Can't argue with results like that. Those KMR rifles are sexy as fuck.
