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1/7/2012 8:31:47 PM EDT
I took some M855 green tips to the range today withe the following results:
100 yd; -4 min elev, 0.5 min wind -  0.625" 6 shot group
300 yd zero; 2.5 inch groups
400 yd; 4 min elev, 1.5 min wind - 6 inch groups, 10 of 10 pierced 0.25" mild steel plate
500 yd; 6 min elev, 1.5 min wind - 10 inch groups, 6 of 10 pierced 0.25" mild steel plate
16" non-chrome lined barrel, 9-12mph wind from 3 o'clock. This rifle will produce sub MOA groups at 500yds with handloads, and 6" groups at 500 with bargain bin PMC FMJ
My conclusion: Great penetration at distance, better than expected. Accuracy was slightly disappointing; next step is to pull and reload a few, and see what we can wring out, my hypothesis is that the projectile is poorly balanced and will not improve much. Sorry, chrony died... I am ashamed. I recovered one of the steel cores: only slight damage, weight was 10.02gr.
1/7/2012 8:39:30 PM EDT
[#1]
Good info: thanks for sharing. Sounds like ok groups to me at those distances with a 16" barrel.  Let us know how the reloads do too.
1/8/2012 3:35:01 AM EDT
[#2]
Topic Moved
1/8/2012 4:28:43 AM EDT
[#3]
You got sub-moa accuracy out to 300 yards, and 2moa to 500 with M855 and you find this "slightly disappointing"?
1/8/2012 7:00:58 AM EDT
[#4]
What M855 were you using?
1/8/2012 7:05:46 AM EDT
[#5]
Only slightly. This was done under near ideal conditions: 78 degrees, 30% humidity, only light wind, firing from a comfortable position on a solid rest. They seemed to retain plenty of velocity at 500, I would have liked to seen the groups stay a bit tighter. All in all we were satisfied with the results, and very impressed with the penetration at distance. I find that I have to complain about something.
1/8/2012 7:11:00 AM EDT
[#6]
Quoted:
What M855 were you using?


Lake City m855. Not the XM855 seconds. '11 headstamp
1/8/2012 8:18:26 AM EDT
[#7]
It will be very telling to see what your groups are with the M855 handloaded, if the bullets or the loading is the "weak" link. I think the accuracy is good with the factory loads, but I'm a novice to long range shooting.
1/9/2012 11:28:44 AM EDT
[#8]
Using this setup with PMC X-TAC M855 (BCM 12.5" SS Upper)



And this reticle



These were my results at 565 yards



I was pleasantly surprised as well.
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