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Shooting & Reloading - Mausers, Big Bores and others >> Cast Bullets

DarylSModerator
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Reged: 10/08/05
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Re: How important is a metplat on cast bullets for hunting
      06/09/20 02:07 AM

450, my own thoughts on cast bullet meplats run towards the .390" as being quite good (perhaps a bit larger than necessary for cavitation to happen, which is the reason for them. I see a flat meplat as necessary to prevent detonation in the magazine as well as to produce a more grievous wound.

That is what is needed in my opinion for large game when using bullets that are hard enough to shoot at higher speeds accurately. I would certainly call 1,700fps to 2,000fps are higher speeds.

I have heard .460" hard cast bullets shoot better in micro-groove barrels. Seems to me the late Paul Mathews used larger cast bullets in his micro-groove as a general practice and found the undersized bullets that were paper patched would obturate at lower speeds to shoot well with smokeless, but only with exceptionally fast burning smokeless like 4198.IIRC

I just checked the meplat on the Bullet Barn cast 450gr. bullets I have loaded up for my Pedersoli 1886/71 lever gun and they run .300". I see that as being sufficient for deer, elk and moose. Your .390" meplats are considerably larger than that. My velocities are also in the 1,850fps range with a bevel-based, hard cast bullet. I do not expect poor penetration, but actually shooting something with them will show that.

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V

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Subject Posted by Posted on
* How important is a metplat on cast bullets for hunting 450 05/09/20 01:11 PM
. * * Re: How important is a metplat on cast bullets for hunting eagle27   05/09/20 01:56 PM
. * * Re: How important is a metplat on cast bullets for hunting 450   05/09/20 02:53 PM
. * * Re: How important is a metplat on cast bullets for hunting Hunter4752001   05/09/20 06:19 PM
. * * Re: How important is a metplat on cast bullets for hunting 450   05/09/20 07:33 PM
. * * Re: How important is a metplat on cast bullets for hunting DarylSModerator   06/09/20 02:07 AM
. * * Re: How important is a metplat on cast bullets for hunting eagle27   06/09/20 06:57 AM
. * * Re: How important is a metplat on cast bullets for hunting Rule303   06/09/20 08:01 AM
. * * Re: How important is a metplat on cast bullets for hunting Hunter4752001   06/09/20 08:29 AM
. * * Re: How important is a metplat on cast bullets for hunting 450   06/09/20 05:25 PM
. * * Re: How important is a metplat on cast bullets for hunting DarylSModerator   07/09/20 05:45 AM
. * * Re: How important is a metplat on cast bullets for hunting Rhodes   07/09/20 03:07 PM
. * * Re: How important is a metplat on cast bullets for hunting 450   07/09/20 04:58 PM
. * * Re: How important is a metplat on cast bullets for hunting Rhodes   08/09/20 06:16 AM
. * * Re: How important is a metplat on cast bullets for hunting 450   08/09/20 12:32 PM
. * * Re: How important is a metplat on cast bullets for hunting DarylSModerator   09/09/20 02:28 AM

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