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AR15.COM
11/30/2006 2:35:15 PM EDT
I just replace both my main spring and the recoil spring in my 96 Centurian.

I got Wolff springs.

I put in a 16pound main spring for a lighter trigger pull and a 16 pound recoil spring to take up some of the recoil and since i have such a light main spring.

Does anyone think I will have any problems?  I may test it tomorrow.


Correct me if I am wrong but the standard is 20 pound hammer and 14 pound recoil.
11/30/2006 3:10:02 PM EDT
[#1]

Quoted:
I just replace both my main spring and the recoil spring in my 96 Centurian.

I got Wolff springs.

I put in a 16pound main spring for a lighter trigger pull and a 16 pound recoil spring to take up some of the recoil and since i have such a light main spring.

Does anyone think I will have any problems?  I may test it tomorrow.


Correct me if I am wrong but the standard is 20 pound hammer and 14 pound recoil.


13# recoil spring is factory. Most find that a 15# recoil is the sweet spot when the mainspring is between 18-16#. If the 16# recoil offers up no mechanical problems with your loads, and you enjoy the feel of the system then stay with the 16#.

Always use the +/- 2# rule with the mainspring and recoil springs. Neither should be outside 2# either way without a corresponding increase/decrease in the other (ex. Factory standard 13# recoil and 20# mainspring are gtg on +p+ loads; 13# recoil with an 18# mainspring is gtg up to +p loads and lower end of +p+; a 16# mainspring with a 15# recoils is gtg up to +p). If your outside the + rule (ex. 22# mainspring, 13# recoil) you introduce the chance of timing errors/mechanical problems. If your outside the rule with - (ex. 16# mainspring with 14# recoil) you are introducing timing errors as well as a chance of abnormal wear (frame battering, etc.) and should not use any load outside standard or competition loads.

Generally you never want to go below 16# mainspring or 13# recoil spring; never above a 22# mainspring or an 18# recoils spring. This rule is of course excluding competition use.
11/30/2006 3:55:15 PM EDT
[#2]
OK I think you just confused me more.

Wolff:
Recoil Springs
For use in:
 Beretta 92 Series 9mm - Compact Models
 Beretta Centurion .40 S&W

Reduced Power...: 12 and 13 Lb.
Factory Standard.: 14 Lb.
Extra Power.........: 16 and 18 Lb.

So I went one up to a 16 pound recoil since I am using a light 16 main spring.
I am using a centurian .40.  Should I have went with the 18lb ???

I ordered the main spring pack so I also have the 16, 17, 18, 19 if I need to switch them out.  
I don't plan on shooting +P ammo, just standard ammo.  This is just a range gun.

I guess what I am saying is that I only have the 16 recoil spring to use, but multiple main springs to play with.  Which would be the best to use???
11/30/2006 4:43:26 PM EDT
[#3]

Quoted:
OK I think you just confused me more.

Wolff:
Recoil Springs
For use in:
 Beretta 92 Series 9mm - Compact Models
 Beretta Centurion .40 S&W

Reduced Power...: 12 and 13 Lb.
Factory Standard.: 14 Lb.
Extra Power.........: 16 and 18 Lb.

So I went one up to a 16 pound recoil since I am using a light 16 main spring.
I am using a centurian .40.  Should I have went with the 18lb ???

I ordered the main spring pack so I also have the 16, 17, 18, 19 if I need to switch them out.  
I don't plan on shooting +P ammo, just standard ammo.  This is just a range gun.

I guess what I am saying is that I only have the 16 recoil spring to use, but multiple main springs to play with.  Which would be the best to use???


Brain fart on my part, I had a standard 92FS on the brain. Yes, the Centurion does use a 14# for factory. To make a long story short you should be great with a 16# recoil and 16# mainspring. Many feel the .40 requires a greater # recoil spring, opting for a 15#. As you have dropped the mainspring to 16#, a good idea is to raise the recoil spring to a 16# or 17#. Since you have both I'd take them with you to the range and find which you like/cycles properly.

Sorry about the misunderstanding. Long day.
12/1/2006 2:56:32 AM EDT
[#4]
Cool thanks for the info.  I didn't want to fire a round off and crack the slide.
Thanks again.
12/2/2006 10:47:41 AM EDT
[#5]
Your good to go, unless your shooting reduced loads (read jamming problems).

On the 92's/96's with reduced hammer springs,
Stock spring weight for light target loads,
+ 2 lbs on the recoil spring for full/hot loads,
+ 3 LBS for +P loads.

Rule of thumb is  the spent case ejection distance, and the target grouping.

Correctly sprung, the spent cases will be thrown about 6' with tight groups.
Under sprung, the case will be thrown much farther, and your groups will increase since the slide is unlocking too soon.
12/4/2006 10:36:57 AM EDT
[#6]
I put about 150 rounds through it with PMC ammo and Winchester.  No problems using the 16recoil and 16main spring.

All OK but too damn cold to keep shooting.
12/4/2006 6:22:39 PM EDT
[#7]
Anyone use the ISMI recoil springs?  Or the M9 magazine springs from ISMI?  

I've heard lots of things about the ISMI AR, Glock, and 1911 springs, but not Beretta.