rockrat
06-11-2011, 07:53 PM
Made it back to the range today. Almost didn't go because of the wind , 15-20 mph @ 8'o'clock.
Been going up in charge from the last report, as it seems like all indications showing that groups were shrinking, yet pressure signs were unchanged.
Went up to 36 gr of Varget and groups looked OK. It is the right target. Low shot was from first shot after shooting about 6 bullets made from 223 cases thru the gun. Guess getting some lube back in the barrel after shooting it out with the J-words. Second was higher and last two were next to each other. Had some 36.5 gr loads, but having so much fun shooting the gongs, that I ran out of ammo before shooting the target:veryconfu. Primer was showing just the smallest amout of flattening.
Went up to 37gr. of Varget, all the case will hold, so when I seat the boolit, it just touches the powder. Also backed off the size die 2 turns as it seems like the dies were sizing the cases too much.
As you can see, the gun LIKES the 37gr load. Had such a nice group after 3 shots, I had to stop. Hated to ruin that group. I think I have found THE LOAD, with this boolit, the BRP 378-310. Cast out of #2, water quenched, lubed with "midnight blue" (something I came up with) and sized .379". Velocity was 1885fps with only one shot over the chrony. Smacks the gongs with authority.:bigsmyl2:
http://i34.photobucket.com/albums/d149/Bigdog337/002-4-3.jpg
Other holes were made with a 338w/m Ruger #1. Have work to do with that one.
Finally, please don't use these loads in your guns. They are out of a bolt gun and way too much for any other rifle
Been going up in charge from the last report, as it seems like all indications showing that groups were shrinking, yet pressure signs were unchanged.
Went up to 36 gr of Varget and groups looked OK. It is the right target. Low shot was from first shot after shooting about 6 bullets made from 223 cases thru the gun. Guess getting some lube back in the barrel after shooting it out with the J-words. Second was higher and last two were next to each other. Had some 36.5 gr loads, but having so much fun shooting the gongs, that I ran out of ammo before shooting the target:veryconfu. Primer was showing just the smallest amout of flattening.
Went up to 37gr. of Varget, all the case will hold, so when I seat the boolit, it just touches the powder. Also backed off the size die 2 turns as it seems like the dies were sizing the cases too much.
As you can see, the gun LIKES the 37gr load. Had such a nice group after 3 shots, I had to stop. Hated to ruin that group. I think I have found THE LOAD, with this boolit, the BRP 378-310. Cast out of #2, water quenched, lubed with "midnight blue" (something I came up with) and sized .379". Velocity was 1885fps with only one shot over the chrony. Smacks the gongs with authority.:bigsmyl2:
http://i34.photobucket.com/albums/d149/Bigdog337/002-4-3.jpg
Other holes were made with a 338w/m Ruger #1. Have work to do with that one.
Finally, please don't use these loads in your guns. They are out of a bolt gun and way too much for any other rifle