Plopped some slow 160 FTX 308 down-range 100 yards today.
1091 fps from 160 FTX, 10.10 gn Trail Boss, COL 2.660", HDY brass, F210M, in my 18" A-Bolt.
Accuracy was ok, (A) ~1.4" spread on 5 shots with magnetospeed hanging on,
and (B) ~2" on 5 shots with a can hanging on (very quiet,less than a 22LR).
There were no keyholes.
To get 1080 fps I will load 9.90 gn TB, via QL.
Same gun/can & projectile @ 2500 fps was 1" spread.
