Recoil Spring - AR15.COM

Handguns » 1911 Discussions

Posted: 7/6/2017 5:50:06 PM EDT

My Kimber Team Match II in 45ACP felt like it was taking a beating while firing factory 230gr ball ammo, as well as my 200gr swc major load. Got a Wolff recoil calibration pak (extra power pak). It's directions say to start with the strongest spring, then work down until you get good function. Well I got good function on the top, 24lb spring. Is this normal for factory ball ammo? I believe the standard spring for most 45 5" 1911s is 18lbs? What am I missing here?

Posted: 7/6/2017 6:28:40 PM EDT

[#1]

Either your loads are 10MM level hot, or you have a very weak hammer spring. What does the bottom of your firing pin retainer look like?

Posted: 7/7/2017 1:24:49 AM EDT

[#2]

Quote History

Quoted:
Either your loads are 10MM level hot, or you have a very weak hammer spring. What does the bottom of your firing pin retainer look like?

View Quote

My loads don't feel any hotter than factory ammo. The hammer spring makes a lot of sense though since moving the slide resets the hammer. What should I look for on the firing pin retainer?

Posted: 7/7/2017 7:03:14 AM EDT

[#3]

It'll either be bevelled or flat. Flat slows down the slide. Most companies used bevelled because it makes it feel nicer while racking.

Posted: 7/7/2017 7:29:56 AM EDT

[#4]

16 lbs is gov std for 45 acp ball ammo. I would not go above 18.5 lbs on the recoil spring.

My major load of at 170 pf for 200 LSWC I use a 14 lbs recoil spring using std SA inc ILS internals.

Posted: 7/7/2017 8:48:11 AM EDT

[#5]

Quote History

Quoted:
16 lbs is gov std for 45 acp ball ammo. I would not go above 18.5 lbs on the recoil spring.

My major load of at 170 pf for 200 LSWC I use a 14 lbs recoil spring using std SA inc ILS internals.

View Quote

I use a 20lbs flatwire recoil spring. I've used a 24lbs too to function check and it works with no problem.

A fbfp stop and a heavier mainspring too.

Posted: 7/7/2017 2:43:16 PM EDT

[#6]

Functions fine for me as well, but when I did bill drills I found increased vertical stringing when using a stronger recoil spring.

I think the gun nose dives with the larger recoil spring in my hands.

now 14 lb recoil spring gave me the smallest group in the shortest amount of time.

the 200 grain loading at 170 pf is weaker than factory loadings (850 fps vs 900 fps)

Posted: 7/8/2017 3:14:32 PM EDT

[#7]

Firing pin retainer is beveled. I ordered a Wolff main spring pack to try out. I'll put factory spring weights in and give it a try. I'm not sure what is currently in the gun and it probably needs replacing anyways.

[ARCHIVED THREAD] - Recoil Spring

Handguns » 1911 Discussions

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