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Post by Quick Draw McGraw on Oct 28, 2016 12:45:29 GMT -5
Magnum Research already makes the long frame for both .45-70 and .450 Marlin already, so the .458 bore is a reality already. Over on Avi's YouTube channel he has a BFR in .458 Win Mag. The performance is hampered a bit by a shorter barrel in terms of velocity. But penetration is similar. Would simply boring out the Cylinder be the only requirement?
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Post by 2sheriffs on Oct 28, 2016 13:04:12 GMT -5
You could't use a 450 Marlin cylinder because it has a longer belt than the 458 Win. Mag. You would probably have a problem with OAL because the 458 Win case is about .4" longer.
Ron
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Post by Quick Draw McGraw on Oct 28, 2016 13:06:34 GMT -5
Damn. Of course it had to be more complicated. Sounds like it would require a custom cylinder and a machined frame to make room.
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Post by grizzly on Oct 28, 2016 13:06:51 GMT -5
I inquired about this from the magnum research custom shop a few years ago when I was looking at possible conversions. I don't think they said they would, but they they also didn't say no. I'm not sure there would be much to gain beyond with a .458 vs a 45-90 in a BFR if you are loading your own. I was interested at the time for factory load availability. I would think Jack Huntington could make one if he's willing to. He did excellent work on my BFR.
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