How slow can you go?This is a discussion on How slow can you go? within the XD-45ACP Discussion Room forums, part of the XD Talk category; I'm looking to reload a very low velocity, low recoil, low noise round for my XD45. Something like a 200 gr SWC about 600 FPS ...
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12-22-2011, 12:49 AM
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#1
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How slow can you go?
I'm looking to reload a very low velocity, low recoil, low noise round for my XD45. Something like a 200 gr SWC about 600 FPS or so. I will use it to shoot rabbits and other small game. How slow have you gone and maintained reliability? I'd rather not have to put a lighter spring in it, since this same pistol will reside in my nightstand with full house PD rounds.
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Barrett Hall
XD45C
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12-22-2011, 02:23 PM
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#2
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Most autopistols need a minimum of 120 Power Factor to cycle. Your load is exactly 120 PF (600 x 200 = 120000 / 1000 = 120). There will be some trial and error and load data won't be plentiful and powder selection will be key.
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12-23-2011, 06:58 PM
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#3
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Quote:
Originally Posted by 57K
Most autopistols need a minimum of 120 Power Factor to cycle. Your load is exactly 120 PF (600 x 200 = 120000 / 1000 = 120). There will be some trial and error and load data won't be plentiful and powder selection will be key. 
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I'm not sure how you came up w/ that but most guns are setup for factory equiv ammo, not a min PF. You'll find the stock spring on the XD pretty heavy, but I have had fine results going to 750fps w/ a 200gr LTC. Below that, dropping one spring rate will run the gun better.
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12-24-2011, 05:34 PM
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#4
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Quote:
Originally Posted by fredj338
I'm not sure how you came up w/ that but most guns are setup for factory equiv ammo, not a min PF. You'll find the stock spring on the XD pretty heavy, but I have had fine results going to 750fps w/ a 200gr LTC. Below that, dropping one spring rate will run the gun better.
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Fred, I got that from the technical editor of Guns & Ammo years ago. He was responsible for a good bit of testing for the .40 G&A which predated the .40 S&W. I agree with you that bunny fart loads will probably require a recoil spring of lower weight.
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12-26-2011, 09:57 AM
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#5
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Quote:
Originally Posted by bearintex
I'm looking to reload a very low velocity, low recoil, low noise round for my XD45. Something like a 200 gr SWC about 600 FPS or so. I will use it to shoot rabbits and other small game. How slow have you gone and maintained reliability? I'd rather not have to put a lighter spring in it, since this same pistol will reside in my nightstand with full house PD rounds.
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shooting a rabbit or other small game with a .45 ain't gonna leave much for the table . . .
But unless it's subsonic and suppressed, it's still gonna make a pretty loud bang
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12-26-2011, 10:01 AM
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#6
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