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Joined: Jan 2012
Posts: 36
Campfire Greenhorn
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Campfire Greenhorn
Joined: Jan 2012
Posts: 36 |
can anyone give me some information about re-chambering an Interarms mark V .375 H&H to a .375 Weatherby? I was wanting to know who would do a nice job at a reasonable price Thanks
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Joined: Jun 2001
Posts: 32,173 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2001
Posts: 32,173 Likes: 4 |
Will the Interarms action length be sufficient for the WBY? I don't know, but I seem to recall WBY had to have longer actions built for his calibers - at least the later big-boomer ones. I think he did start out using "standard" length long actions. This just off the top of my head.
Personally, I don't like Wby- either their guns or their calibers, and would stick with the H&H.
But that's just me - whatever floats your cork is your fishing.
edit- Just did a little research. Your action length should be OK- I was thinking the difference between 375 and 378 WBY. Carry on!
Last edited by las; 03/22/17.
The only true cost of having a dog is its death.
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Joined: Apr 2007
Posts: 3,362
Campfire Tracker
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Campfire Tracker
Joined: Apr 2007
Posts: 3,362 |
Ream it. (Mine's a ZKK 602 Brno that started as an H&H before I bought it as a .375 Wby) RIP at AR is the affficianado and will point out there's two differing specs on the chamber. Use max H&H loading data as a starting point / "minimum" for the Wby chambering -- work up from there.
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Joined: Oct 2008
Posts: 7,263
Campfire Tracker
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Campfire Tracker
Joined: Oct 2008
Posts: 7,263 |
I would use the shorter freebore spec not the original one. Just long enough so you could use factory loads if you ever run across these they are almost non existent.
Usually the barrel doe's not need to be set back but a good idea if the original chamber is on the maximum side of the specs.
"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
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Joined: Feb 2012
Posts: 238
Campfire Member
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Campfire Member
Joined: Feb 2012
Posts: 238 |
You might check with Score High Gun Smithing in Albuquerque, NM. He has a reamer, I was talking to Charlie last year about re-chambering my CZ 550 in 375 H&H. He has done some nice work for me.
US Army Ft Carson, Co 1976 to 1979
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Joined: Aug 2002
Posts: 11,109
Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2002
Posts: 11,109 |
Will the Interarms action length be sufficient for the WBY? ... .375 WBY = .375 H&H AI (with dbl radius shoulder).
George Associate Gypsy Order of Sleepless Knights ... That is when I carried you ...
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Joined: Nov 2006
Posts: 901
Campfire Regular
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Campfire Regular
Joined: Nov 2006
Posts: 901 |
Just to clarify a bit...the original 1944, or whatever freebore or throat spec was .750"! In about 1990 or so it was shortened to .375-ish" which while still allowing the factory ammo, it also helped accuracy. Manson will grind a reamer with the new spec, while the last time I checked, Clymer and PTG still stuck to the older.
When it comes to the 375 Weatherby, a 300 grain bullet, over a caseful of H4350 shoved out of the "new" throat is a beautiful thing! Especially if the gun is built relatively light weight as opposed to the usual field artillery weight most 375 H&Hs are.
Winchester rifles and Swarovski scopes.
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