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+--- Thread: Remington Rolling Block (/thread-2879.html)
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RE: Remington Rolling Block - Stephen Borud - 11-03-2019
Don the bore diameter is .396 and groove is .415. It has four lands four grooves. I couldn’t get a 44/77 case in the chamber but my little 40/50BN dropped right in. The chamber length is 2.415 with a leade that gets it up to right at 2.500 long. It has a 1/24 RH twist.
RE: Remington Rolling Block - Don McDowell - 11-03-2019
Hmm, guess it's time to go digging thru my ancient Cartridges of the World book...
RE: Remington Rolling Block - Don McDowell - 11-03-2019
Wondering if who ever did the work on that rifle way back when ran a 40-7o bn reamer into a Jarmin chamber?
RE: Remington Rolling Block - Stephen Borud - 11-03-2019
Don I took one of my 40 cal pp bullets and slid it in the muzzle. It’s OD is at .398 it slid in right but went in.
RE: Remington Rolling Block - Stephen Borud - 11-03-2019
Don I wonder if it isn’t the 10.15mm Jarmann?
RE: Remington Rolling Block - Stephen Borud - 11-03-2019
I just saw your comment Don about the 40-70BN. Maybe so!
RE: Remington Rolling Block - Don McDowell - 11-03-2019
The Jarmin is a real possibility, and it's not a lot different from the 40-70 bn..
Maybe run a 45-90 case in a 4065 die fill the case with 1f and a wad seat a bullet wrapped to .396 , rip the trigger and see what the fired case looks like.
RE: Remington Rolling Block - Stephen Borud - 11-03-2019
Good idea Don. I have a friend that has a 40/65. I’ll see if he will give me a few rounds.
SB