Speer 75 gr JHP for $18/100; Midway lifted limit
#7
So far it sounds like they are working alright. The primary cause of concern is that the thinner jacket of varmint bullets can literally get thrown off of the bullet under high rpm. I've done a bunch of research across the world wide web on this and it doesn't seem to be as much of an issue as it did in the past - I'm guessing due to technological improvements in jacket design. Nosler bullets seem to be able to handle it the best and most stories of bullets going "poof" seem to be with Hornadys.  I would note that Mel's Monster barrel above does have reduced height rifling which might be easier on the jacket when it comes to keeping it on.

I've been intrigued by the lateral forces on bullet jackets at high rpm in fast twist barrels and prospects for deformation and slipage ever since the 224 Valkyrie had it's problems and there were the great twist debates. It doesn't seem to be anything anyone talks about or researches (I'm sure our military knows, though).
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RE: Speer 75 gr JHP for $18/100; Midway lifted limit - by StoneHendge - 06-15-2021, 10:47 PM

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