10 shot strings, 100 yds, Ohler 35P, 10 ft. from muzzle, 72 degrees, EL= 600'. Humidity=48% via TV.

Sunny, great day to shoot, but then, most days are.

RRA AR15 20" SS barrel 1:8, not clean when I started.

All strings shot within 3" groups.
Best of the day, XM193 LC 04 9 shots in 1", one called flyer, several cut into each other
Worst of the day, Adcom 99, 10 shots in 3"....2nd 10 shot strg of Adcom shot a bit over 2"

No problems with any ammo.  All shots from a 20 rd UI mag.

XM193 LC 04 55gr
M 3268
ES  36
SD  10.5

XM855PD LC 03 62gr
M 3079
ES 60
SD 19

Adcom 99 5.56 62gr
M 3055
ES 137
SD 37

WCC 03  55gr
M 3230
ES 99
SD 38

SA 86 13  55gr
M 3181
ES 79
SD 20

5/22/2006
10 shot strings, 100 yds, Ohler 35P, 10 ft. from muzzle, 68 degrees, EL= 600'. Humidity=35% via TV.

Sunny, no wind.

RRA AR15 20" SS barrel 1:8, not clean when I started.

RORG89 62Gr. SS109
M 2975
ES 87
SD 33

77Gr SMK 23.6gr TAC R-P cases No crimp
M 2682
ES 88
SD 25

77gr SMK 23.6gr TAC R-P cases Crimped w/Lee Factory Crimp die
M 2687
ES 30
SD 9

So I did it again with the crimped rounds being shot first the the uncrimped rounds in the hot barrel.

77gr SMK 23.6gr TAC R-P cases Crimped w/Lee Factory Crimp die
M 2675
ES 70
SD 22

77Gr SMK 23.6gr TAC R-P cases No crimp
M 2676
ES 122
SD 35

This load shoots sub 1/2" groups in my AR, but I could definitely see the difference in the crimped groups.

SA M1A
7.62X51 FN 73 NATO surplus
M 2790
ES 59
SD 19
The 10 shot string was 4" at 100yds, remove two rds and it was a 2" group. This is very accurate ammo.

Thanks, always interested in chrono results since I don't own one and appreciate those who share thier info.

what kind of ammo was the WCC 03 55 grain? Q3131 or Q3131A?

Quoted: what kind of ammo was the WCC 03 55 grain? Q3131 or Q3131A?

Q3131A

BBT with new info.