Sierra 32 gr. Blitzking loads for DPMS AR-15

[Big Nick]

I own a DPMS Panther in .204 Ruger and for the first 100 rounds of factory loads and 200 rounds of reloads could not get it to group below 1.25" @100 yards with some loads grouping over 2.5". I used 5 different powders in my reloads but only one brand of bullet which was the Hornady V-max. I finally was able to get my hands on some 32 gr. Sierra Blitzkings and loaded up 5 rounds using 25 grains of H322 and CCI BR primers. I loaded 5 more rounds using 26.5 grains H4895. To my surprise the H322 loads shot into a .625" group. What really amazed me was when I shot the H4895 loads. I couldn't hardly believe it but the DPMS put 5 rounds into a .25" group. The shooting conditions where perfect and I was shooting from a very stable benchrest, but still I couldn't believe my eyes. I then put one target over the other and the 10 shot group it made using the two different powders was 7/8", with 9 out of 10 going into a .75" group. I haven't been back to see if I can match these groups, and yes, it might be a fluke, but I think I've found the bullet and powder this gun likes.

[Verminator2]

Good shooting! My DPMS likes 27 gr. of IMR 4895 and the 32gr. BK, shoots in the .3s most of the time.

[Big Nick]

I'II be happy if I can stay around .50"-.63".

[Big Nick]

Yesterday evening I took the DPMS out and had 3 different 5 round loads to test. Everything was going fine until I dropped my shell holder and cartridges went flying everywhere. The only thing I could do was shoot the rounds and hope for the best. I lost 3 rounds under the shooting platform so I only had 12 rounds to test. I didn’t expect much but ended up with a 12 shot group of 1” @ 100 yards. 11 out of the 12 went in a .75” group with 7 going under .625. I had excellent shooting conditions. My loads are listed below but the thing I have found is that this barrel likes Sierra Blitzkings. It does not like Hornady V-max bullets. The same load with the V-max’s would probably group over 2”.

1. Sierra BK 32 gr.
H4895 27.0 gr.
CCI BR-4 Primer (Same wall thickness as Remington 7 1/2)
Nosler Case

2. Sierra BK 32 gr.
H4895 27.3 gr.
CCI BR-4
Nosler Case

3. Sierra BK 32 gr.
IMR4895 27.0 gr.
CCI BR-4
Nosler Case