Pretty simple. We start with 6.5-284 nosler brass. Then run it through a 6mm - 284 die. Final stage is running it through the 22-284 die. These are redding dies we got from Graffs. After the first firing they grow quite a bit, after the first trimming they are good.
Boy that's a lot of powder to be burned in such a small tube.. how many shots can the barrel handle before it gets to hot, I would think not many..and how often must it be cleaned to keep accuracy at that level. It obviously shoots get groups and is deadly to say the least.. did you ever chrony any loads. thanks and good luck.
Right now up here there isn't much chance of anything getting hot LOL. Right now most of the shooting is done at around -5F (-20C).
Accross the chronograph they are 3613-3625 with the 80 gr berger. Shooting a 3 shot group with a minute or so between shots the barrel is not even warm.
Were hoping to take the out tomorrow and stretch them out to 500 yards and see how they work,only problem is it's supposed to be even colder tomorrow.
Barrel life won't be that long, they should be good for 1000 rounds for sure. And by that time a person will be tired of them and it will time to spin a new barrel on and try something new.
Been always curious about this chambering. Got a 22 CHeetah MK 1 going this summer. 1-15" Pacnor on a Cooper model 22. Using the Lapua Palma brass and love it. Really only making a load manual for the cartridge for time being, for others to use who may want to try the CHeetah. Trying every conceivable powder and running up trough the charges recording velocity.
Think I may be on to a real doozy with H380 cuz hittin upper 4200's FPS and no pressure what so ever. Most every powder I've tried will push 52gr Watsons to 4200+ but show a little agitation around the head stamp. Not the case with H380 tho, I've yet to try the next slowest Hodgdon powder, H414...
How's the data progress going!
Bob the nailer
one ragged hole...the quest for accuracy continues.
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