A few months ago I bought Atlanta Arms 200 - 5.56x45 cartridges. 100 each of 55 gr Sierra BK and 100 of 77 gr. Sierra. I am inclined to buy a bunch more. The weights were very close and the case capacity was a bit better than the competition.

I weighed 20% of the box of 50 and the deprimed empty case weight only varied 0.8 grains from 94.2 to 95.0 grains. The fired case capacity was 31.2 grains, which will probably be about 30.6 when resized.

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]...[Linked Image from i.imgur.com]


Safe Shooting!
Steve Redgwell
www.303british.com

Get your facts first, then you can distort them as you please. - Mark Twain
Member - Professional Outdoor Media Association of Canada
[Linked Image from i.imgur.com]