Fired some more rounds to do-over some of the measurements.
Method of measurement; Anvil touching rim: anvil above rim on ~ pressure ring
Factory:
.4169":.4161"
.4150":.4155"
.4151":.4155"
.4165":.4163"
.4165":.4163"
.4166":.4163"
.4170":.4166"
.4168":.4164"
.4150":.4159
.4152":.4155"
27GR RE-7, 255 Barnes .377, Fed 210
.4170":.4174"
.4173":.4176"
.4176":.4179"
.4168":.4176"
.4163":.4170"
30GR RE-7, 255 Barnes .377, Fed 210
.4180":.4180"
.4177":.4178"
.4175":.4177"
.4174":.4179"
.4184":.4184"
All fired case, factory and reloaded do not appear to measure consistently round, they're a bit egged and I searched for the largest measurement to report.
I shot against a target and the results do not show well for my marksmanship, perhaps it was the rotted stump I used as a rest. I fired a 5 shot group with the 27gr load and a similar group with the 30gr load. The 30gr group certaily has the better 3 of 5 shots but the 27gr group is better overall.
27gr. 2.4" with best three in 1.5"
30gr. 2.8" with best three in 0.4"
This is again with receiver sights and a brass bead front at 70 yards.
I believe I'll need to put a scope on the thing and take it to a range where there are benches to get real good results.
