Brass was all de-primed, pocket cleaned and swaged on crimped, washed , tumbled, sized in a hornady bushing die .244 , tumbled, trimmed, de-burred, tumbled. + or - .002 on trim. Brass is all once fired as is as close as I can presume.
S@B nato 95.6 96.7 96.0 95.5
*RP 92.9 92.3 92.8 .6 spread*
rem umc 89.2
CJ4 91.6 95.7
PMC Larger print 93.0 92.1 92.6
IMI 93.7 92.4 93.1
FC 97.1 96.1 95.1
Borg 92 nato 95.4 94.9 96.5 95.2
IAI nato 96.2 96.0 97.6
FNM 80-6 99.5 98.2 98.5 heaviest, 1.0 spread
WCC 6 6 91.7 ( 9 4 ) 91.7 (93 nato ) 91.0 .7 spread*
BMA match 95.1 93.4 94.9
***LC 99 nato 91.7 (06 ) 91.4 (05) 91.3 .4 spread ******
MAL 5.56 6-81 93.3 (1-84) 92.7 94.5 92.6 (11-82) 93.2
The mixed lot of LC proved to be by far the most consistent with RP and WCC in second and third. Not overly
controlled or a very large sampling but confirms what everyone believes about different brass on the forums.
From my notes two years ago. I didn't go nuts on weighing large batches though.