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Old April 1, 2005, 06:20 AM   #1
Shoot-N-Scoot
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Newbee need help with .40 S&W

I am having a terrible time getting a good batch of .40's. I am shooting them from a XD service and the action is not fully cycling. I have tried 135gr JHP, 165 FP, and 180 FP with both Winchester 231 and Hodgdon Titegroup. I have used both CCI small pistol and Winchester WSP primers. I have tried powder levels from listed starting points to list max loads. Max loads will cycle the action enough to eject the casing and chamber the next, but not lock back when the mag is empty. Medium loads have a varing degree of success in ejecting the spent case and suggested starting loads usually fail to eject the spent case. Factory ammo cycles just fine. I am obviously doing something wrong, but I can't for the life of me figure out what.
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Old April 1, 2005, 09:04 AM   #2
Number 6
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It sounds as if

your loads are not generating sufficient pressure. This makes it likely that:

1. Your loads are actually too light; or

2. Your bullets are not properly crimped into the case.

There is also the possibility that your gun was shipped with too strong a recoil spring, but I suggest you start with the more obvious causes.

Compare YOUR loads with the data here:

http://home.columbus.rr.com/jmaass/ipscload.htm

You might want to bookmark that site!
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Old April 1, 2005, 10:12 AM   #3
Shoot-N-Scoot
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If I crimp any tighter the case buckles. Lyman 48' and Speer both list similar sets of data for the round. I have been to the suggested website before and I am hesitant to try many of the loads due to my inexperience in reloading.
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Old April 1, 2005, 10:46 AM   #4
HSMITH
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Back the crimp off, if you are doing any more than just taking the bell out of the case you are overcrimping. Overcrimping can swage the bullet down, this can lower pressures since the bullet is undersized and won't seal well. It will also drastically lower case tension and setback can happen. With a little setback the gun can rupture a case.

Try some loads again just removing the bell.
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Old April 1, 2005, 04:43 PM   #5
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or

Might need a more 'medium' powder; you got anything like that?

(AA5, Power Pistol, WAP, 3N37, N350, HS6, ?)
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Old April 1, 2005, 05:04 PM   #6
Shoot-N-Scoot
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Right now, the only powder I have is W 231 and Titegroup. I am going to try reducing the crimp tonight and see what that produces.
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Old April 1, 2005, 10:53 PM   #7
Shoot-N-Scoot
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Re-setting th crimp had no effect.
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Old April 2, 2005, 12:14 AM   #8
Cloudpeak
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Shoot-N-Scoot,

You might run your problem by the guys on the HS2000/XD group.
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Old April 2, 2005, 08:15 AM   #9
HSMITH
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Do you have a check weight for your scale? How are you dispensing powder charges?
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Old April 2, 2005, 08:39 AM   #10
Shoot-N-Scoot
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I have a check weight. The powder is dispensed from a small cup that is part of tha scale and lifts off. It has a spout/neck to make pouring into a case easier.
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Old April 2, 2005, 05:34 PM   #11
Shoot-N-Scoot
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Problem solved. I'm not sure exactly how I solved it though. I basically started a square one, cleaned everything, reset all of the dies, cleaned the pistol with a sand blaster (figuratively speaking) and then everything worked as advertised. I'm not sure if it was one big boo-boo, or a combination of several small things.
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Old April 2, 2005, 08:43 PM   #12
Black_Snowman
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Quote:
or a combination of several small things
That gets my vote. Little things can stack up against you, that's why there's "margin for error" built into everything. I've used Tite Group with great success in 40 and 45 ACP for target loads. Only thing I've found that I like as well as Universal.
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