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#3639299 - 01/04/10 Feasibility of boring a .325 WSM to .358 WSM?
Jeff_O Offline
Campfire Oracle

Registered: 04/21/07
Posts: 27082
Loc: Wetter'n Oregon
Got a .325 BLR that would make a bitchin' .358 WSM. Ignoring the slender barrel profile for the moment, is there enough meat there in the lands/grooves to get a clean rebore from .325 to .358?
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#3639886 - 01/04/10 Re: Feasibility of boring a .325 WSM to .358 WSM? [Re: Jeff_O]
JS_LaCourse Offline
Campfire Regular

Registered: 03/07/08
Posts: 561
someone has done this in Oz. calls it the 35 sambar. not sure about your barrel

250 gr bullet at 2700 fps

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#3640739 - 01/04/10 Re: Feasibility of boring a .325 WSM to .358 WSM? [Re: Jeff_O]
dedseven Offline
Member

Registered: 05/27/06
Posts: 34
Loc: North central Washington
Originally Posted By: Jeff_O
Got a .325 BLR that would make a bitchin' .358 WSM. Ignoring the slender barrel profile for the moment, is there enough meat there in the lands/grooves to get a clean rebore from .325 to .358?





Yes, the bore should clean up just fine. The problems will come from inadequate barrel wall thickness and/or the construction of the rifle making barrel removal difficult.
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#3642226 - 01/05/10 Re: Feasibility of boring a .325 WSM to .358 WSM? [Re: dedseven]
Cowboybart Offline
Campfire Guide

Registered: 02/13/05
Posts: 2892
Loc: Wyotana
If I am not mistaken the reason why they stopped at 8mm with the short mags is because the 33 and 35 cal bullets made the cartridge too long for a short action. Yes, you can always seat the bullet deeper but then you end up with 350 Rem Mag performance.
Just get an "original" short mag - 350 Rem Mag smile
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#3644948 - 01/05/10 Re: Feasibility of boring a .325 WSM to .358 WSM? [Re: Cowboybart]
Jeff_O Offline
Campfire Oracle

Registered: 04/21/07
Posts: 27082
Loc: Wetter'n Oregon
Not a bad thing to be "just" at 350 mag performance though! And I know the rifle will cycle WSM's.....

I think the biggie is going to be whether a re-borer will want to deal with a BLR or not. I don't know how tough they are. The new ones have a barrel extension (I think) much like an AR that the lugs log into... that could be "interesting".

Thanks guys.
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#3646165 - 01/06/10 Re: Feasibility of boring a .325 WSM to .358 WSM? [Re: Jeff_O]
Whelen_B Offline
Member

Registered: 06/16/08
Posts: 123
Quote:
Yes, you can always seat the bullet deeper but then you end up with 350 Rem Mag performance.

I get significantly more than 350RM levels in my 350WSM (35 Sambar) - 250s at 2740MV (around 4100 ft.lbs and
a Taylor KO 35) and 310s at 2450. Case capacity over the 350RM is vastly improved and in a shorter case too - my notes on that - http://35cal.com/350wsm.html

Not sure how well it would fare in a BLR. But if it eats 325WSMs then should digest the 358 flavour I guess too. As mentioned, barrel thickness may be a rebore issue - or not(?).
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#3646863 - 01/06/10 Re: Feasibility of boring a .325 WSM to .358 WSM? [Re: dedseven]
TC1 Offline
Campfire Tracker

Registered: 08/28/02
Posts: 6634
Originally Posted By: dedseven
Originally Posted By: Jeff_O
Got a .325 BLR that would make a bitchin' .358 WSM. Ignoring the slender barrel profile for the moment, is there enough meat there in the lands/grooves to get a clean rebore from .325 to .358?





Yes, the bore should clean up just fine. The problems will come from inadequate barrel wall thickness and/or the construction of the rifle making barrel removal difficult.


Trust me, This guy knows.

Terry
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