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November 22, 2009, 01:30 PM | #1 |
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Join Date: June 15, 2008
Location: SoCal; are we done yet?
Posts: 272
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What bullet for stell reactive 9mm?
HI Guys,
I have a mould to cast 124g round nose with micro grouves BUT it's alum and seems to take a lot of care to get a clean bullet. Whereas my 190g .45 steel mould does fine. SO I want to get a steel mould, and not sure what weight since now I have a choice. (I posted similar discussion on casting forum, but many of you may be just reloaders, not casters) What weight please? and why> much obliged, Max |
December 2, 2009, 11:18 AM | #2 |
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Join Date: February 20, 1999
Location: home on the range; Vermont (Caspian country)
Posts: 14,324
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momentum (it's all downhill....)
9mm = 130--135g LRN (based on specific alloy); the slightly greater weight offers a bit more 'time' on the steel, and its slightly greater momentum seems to knock them over with a wee bit more authority.
The bullet itself normally offers a bit more bearing surface for enhanced accuracy, and still seems to shoot relatively to POA ("point of aim") in most guns. I refer specifically to Magma's 09 - 135 RN BB.
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