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6/21/2014 11:27:25 AM
 
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Section 6: Rifles Subject: Marlin M336 Msg# 889201
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Your shop was right--in the newest Lyman manual (I recently updated my Lyman manual from 48 to 49 so I still have the newest one on my desk, thus all my recent references to it) makes frequent references not to load lead bullets faster than 1600fps for Micro-groove rifling. It doesn't seem the shallow grooves will grip and spin lead if pushed any faster. But they work well for jacket bullets by all accounts. I was curious how they might work with plated as opposed to jacket bullets, but then I decided that most plated bullets have warnings not to drive them past certain velocities due to the plating, the question is moot.
While Marlin now offers Ballard rifling across the board, I think cowboy action shooting and that sport's requirement to use lead bullets drove that decision, not any problems with Micro-groove rifling, eh? |
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For reference, the above message is a reply to a message where: Right after I bought my old 336 with Micro-Groove rifling the shop got in another one with Ballard rifling and I almost traded mine in. I talked to several Marlin owners and their opinion was that the only advantage of the conventional land and groove Ballard rifling would be that it would handle lead bullets with no issues. I don't use lead bullets and my rifle is plenty accurate so I kept it. |
