tomme boy
10-12-2012, 06:23 PM
Had to go to the public range today to test some loads in my 1941 Sako M39 Mosin. I started with IMR4895 at 30grs and went to 39 grs in 1 gr steps. They tightened up at 33grs then started to open again at 35grs. I had to place the target at 80 yds as any farther and I could not make it out. Here are two groups, 32 an 33grs.
This is 32 grs.
http://img.photobucket.com/albums/v21/tommeboy/101_0079_zps674fc8c7.jpg
This one is 33 grs.
http://img.photobucket.com/albums/v21/tommeboy/101_0080_zpsce584785.jpg
The load was as follows
Win 7.62x54r Brass
Win LR primer
33 grs of IMR4895
Accurate 205b 205 gr boolit
NRA 50/50 lube
Whole boolit tumble lubed after sized and lubed at 0.314"
Anyone have any chrono data on a 200 gr boolit? Trying to guess the speed here.
This is 32 grs.
http://img.photobucket.com/albums/v21/tommeboy/101_0079_zps674fc8c7.jpg
This one is 33 grs.
http://img.photobucket.com/albums/v21/tommeboy/101_0080_zpsce584785.jpg
The load was as follows
Win 7.62x54r Brass
Win LR primer
33 grs of IMR4895
Accurate 205b 205 gr boolit
NRA 50/50 lube
Whole boolit tumble lubed after sized and lubed at 0.314"
Anyone have any chrono data on a 200 gr boolit? Trying to guess the speed here.