HP recoil spring and reduced hammer spring. - Pistolsmith

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Old 10-06-2005, 06:55 PM   #1
Join Date: Oct 2005
Posts: 4
HP recoil spring and reduced hammer spring.

I put a 26lbs hammer spring in my 9mm practical. Do I need to put in a heavier recoil spring? I notice that it's much easier to rack the slide since I put in the lighter hammer spring.
My brass is hitting the ground about 15' from the pistol.

Am I beating up my HP or should I just wait till it's time to replace the recoil spring ( a year from now) to try a 18.5 or 20 lbs spring?

I shoot IDPA and practice with 125 gr. Rainier fmj and 4.5 gr Win 231 at about 1000 fps. Carry ammo is Federal 124 Hydroshocks.

Any suggestions?

Thanks, Mark
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Old 10-06-2005, 09:08 PM   #2
Senior Member
Join Date: Mar 2001
Location: Southwest
Posts: 2,371
Hello. With the load that you are shooting, I suspect that you are fine with the factory 17-lb recoil spring and the reduced hammer spring. I use 18.5-lb springs in my Hi Powers and find that they work fine with standard pressure factory loads despite the standard 32-lb mainspring, but some folks have reported problems with some standard velocity loads with that setup. I wouldn't shoot much +P with your HP as it is currently sprung, but for the load/velocity you listed, I think you are fine.


Old 10-08-2005, 06:03 AM   #3
Join Date: May 2003
Posts: 102
I'm running a 26# hammer spring and an 18# recoil spring, and amshooting my reloads and Federal 147gr FMJ's with zero problems.

Old 11-06-2005, 09:00 AM   #4
Junior Member
Join Date: Nov 2005
Posts: 2
Where can I get a reduced power hammer spring?
Should I also replace the firing pin spring?
Anything else that I might do?
Old 11-06-2005, 09:27 AM   #5
Join Date: May 2003
Posts: 102
I got the Wilson kit from Brownells PN 965-323-000.

It comes complete with the FP spring.

Old 12-02-2005, 09:00 PM   #6
Join Date: May 2001
Posts: 373
28lb hammer 18.5 recoil is my standard setup. Brass should hit about 6 feet away.

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