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Joined: Mar 2011
Posts: 388 Likes: 4
Sidelock
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OP
Sidelock
Joined: Mar 2011
Posts: 388 Likes: 4 |
I was hoping someone out there with a 360 BPE might be able to tell me what the twist rate is in your barrel. I have the chance to take on a project gun that I would like to have lined back to original caliber. I know I can get a 9.3 mm (.366 groove) liner, but don't know what twist rate would be correct for the 360 BPE. Also, if you could tell me the number of grooves your barrel has, that would be helpful as well.
Thanks
“I left long before daylight, alone but not lonely.”~Gordon Macquarrie
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Joined: Jul 2010
Posts: 544
Sidelock
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Sidelock
Joined: Jul 2010
Posts: 544 |
Flint, lemme check the twist for my little Outschar stalking rifle. I believe that's the one I own that was originally a 9.3 X 57R/360D, if I have the nomenclature correct and that is the same cartridge you're referring to. I believe they were the same, one the German designation and the other British, yes, no? Other than having the chamber lengthened to 62mm it is all original. A rate of 1-14 1/2 sticks in my head but I should check.
Last edited by sharps4590; 08/01/15 01:50 PM.
NRA Benefactor 2008 NRA Patron 2007 NRA Endowment 1996 NRA Life 1988
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Joined: Jul 2010
Posts: 544
Sidelock
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Sidelock
Joined: Jul 2010
Posts: 544 |
Hey Flint, I came up with a 1-15 twist so I wasn't far off. With a 200 gr. bullet it's a tack driver.
NRA Benefactor 2008 NRA Patron 2007 NRA Endowment 1996 NRA Life 1988
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Joined: Mar 2011
Posts: 388 Likes: 4
Sidelock
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OP
Sidelock
Joined: Mar 2011
Posts: 388 Likes: 4 |
Perfect, that is what I was looking for. What kind of powder charge are you using for that 200 gr bullet if I might ask?
“I left long before daylight, alone but not lonely.”~Gordon Macquarrie
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Joined: Jul 2010
Posts: 544
Sidelock
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Sidelock
Joined: Jul 2010
Posts: 544 |
58 grs. of Fffg Scheutzen dropped through a 24 in. drop tube, a .030 over powder card then a pea sized grease cookie, another .030 card wad then seat the bullet, lightly crimped. Here's a group I fired with it at 100 yards, benched and bagged, open sights. First shot at the bottom edge of the target, second in the 5 ring at 7 o'clock then a last sight adjustment and 3 for group.
Last edited by sharps4590; 08/02/15 07:35 AM.
NRA Benefactor 2008 NRA Patron 2007 NRA Endowment 1996 NRA Life 1988
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Joined: Jul 2012
Posts: 4,463 Likes: 207
Sidelock
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Sidelock
Joined: Jul 2012
Posts: 4,463 Likes: 207 |
I don't like black powder, but you sure can't argue with groups like that. Mike
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Joined: Dec 2001
Posts: 6,993 Likes: 402
Sidelock
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Sidelock
Joined: Dec 2001
Posts: 6,993 Likes: 402 |
What weight bullet are you planning to shoot? Most are 155 gr but my gun is regulated for the 190 gr bullet.
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Joined: Jul 2010
Posts: 544
Sidelock
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Sidelock
Joined: Jul 2010
Posts: 544 |
Oh come on Mike...you just gotta get your heart into it...lol! It is sort of persnickety stuff and more work than smokeless, with that I agree! I doubt I could consistently repeat that group but I'm convinced the rifle is capable. That one is a dandy, 5/8 in. for 3 shots at 100.
NRA Benefactor 2008 NRA Patron 2007 NRA Endowment 1996 NRA Life 1988
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Joined: Jul 2012
Posts: 4,463 Likes: 207
Sidelock
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Sidelock
Joined: Jul 2012
Posts: 4,463 Likes: 207 |
Vic, We all have bad habits,you have to decide if I mean you or me. Mike
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Joined: Jul 2010
Posts: 544
Sidelock
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Sidelock
Joined: Jul 2010
Posts: 544 |
Vic, We all have bad habits,you have to decide if I mean you or me. Mike Placed in that context it has to be me, lol!!
NRA Benefactor 2008 NRA Patron 2007 NRA Endowment 1996 NRA Life 1988
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