Springs in a 1911
+6
SmokinNJokin
Chris Miceli
kc.crawford.7
TargetShooter27
cdrt
Sheriff1962
10 posters
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Springs in a 1911
Help me to understand springs in a full size 1911 45acp. For a pistol that is used with factory ball and 230JHP ammo, what is considered a standard ? What does a lighter hammer spring do? How does one choose the weight of hammer and recoil spring weight ?
Sheriff1962- Posts : 176
Join date : 2018-07-04
Re: Springs in a 1911
The factory standard spring for a 1911 is 16 pounds. The current Colt Gold Cup comes with a 16 pound spring for "hardball" and a ten pound spring for lighter loads. The Series 70 Gold Cup came with a ten pound spring standard.
cdrt- Posts : 843
Join date : 2016-04-12
Location : Amarillo, Texas
Re: Springs in a 1911
The hammer spring (main spring) applies the force that drives the hammer into the firing pin. I believe the standard hammer spring for a ball gun is between 23-26lb. The heavier the spring the greater force it takes to cycle the slide, thus a heavier spring can absorb the recoil from a ball round. Bullseye shooters typically shoot lighter loads that wouldn't cycler the pistol with a heavy hammer spring. A lot of shooters use 18-19lb. springs. I believe the standard recoil spring is 16lbs as the previous poster mentioned. The trick is to find the right combination of ammo load, hammer spring and recoil spring. An additional variable you see talked about hear often is if the pistol has a red dot mounted to the slide, which has different characteristics, compared to a pistol with a frame mount, due to the additional weight on the slide.
TargetShooter27- Posts : 34
Join date : 2013-02-05
Re: Springs in a 1911
So a 1911 , without red dot , that is used exclusively with factory match ball ammo , should be set up with factory hammer spring and 16 or 18 1/2 lb recoil spring ?
Sheriff1962- Posts : 176
Join date : 2018-07-04
Re: Springs in a 1911
Yes. The 16 pound spring should be enough, but if it will cycle with the 18 1/2 pound spring, go for it.Sheriff1962 wrote:So a 1911 , without red dot , that is used exclusively with factory match ball ammo , should be set up with factory hammer spring and 16 or 18 1/2 lb recoil spring ?
cdrt- Posts : 843
Join date : 2016-04-12
Location : Amarillo, Texas
Re: Springs in a 1911
You're going to find that A LOT more things will depend on what your recoil and mainspring weights are. Barrel fit, bushing fit, lockup on slide stop pin, chamber just to name a few. Do some experimenting with your gun and find out what works for you.
I can just about guarantee that an 18.5 recoil spring will make the front of your pistol dip when it goes back into battery.
I can just about guarantee that an 18.5 recoil spring will make the front of your pistol dip when it goes back into battery.
Re: Springs in a 1911
What he said.kc.crawford.7 wrote:You're going to find that A LOT more things will depend on what your recoil and mainspring weights are. Barrel fit, bushing fit, lockup on slide stop pin, chamber just to name a few. Do some experimenting with your gun and find out what works for you.
I can just about guarantee that an 18.5 recoil spring will make the front of your pistol dip when it goes back into battery.
Chris Miceli- Posts : 2715
Join date : 2015-10-27
Location : Northern Virginia
Re: Springs in a 1911
Save that for your 9x25 dillon 1911.
SmokinNJokin- Posts : 850
Join date : 2015-07-27
Location : Wisconsin Rapids
Re: Springs in a 1911
Interesting - the Les Baer Premier II that I bought a few years ago came with an 18# spring. They sold me a 16# spring as something "lighter".kc.crawford.7 wrote:You're going to find that A LOT more things will depend on what your recoil and mainspring weights are. Barrel fit, bushing fit, lockup on slide stop pin, chamber just to name a few. Do some experimenting with your gun and find out what works for you.
I can just about guarantee that an 18.5 recoil spring will make the front of your pistol dip when it goes back into battery.
For Bullseye shooting ONLY, using Magnus #801 bullets, and 4 grains Bullseye powder, what spring do you recommend?
Does anyone sell a simple spring weight tester? I've seen a handmade tester in this forum, but I don't have the materials with which to make one.
KC, I don't understand - because of recoil, isn't the front of the barrel moving upwards? Or are you so good that you can control this better than others.
mikemyers- Posts : 4236
Join date : 2016-07-26
Age : 80
Location : South Florida, and India
Re: Springs in a 1911
Mike, You can see in this video that the slide "slamming home" causes a rotational force. The closer to "kissing" into lockup, the less that rotational force translates into nose dive.mikemyers wrote:
KC, I don't understand - because of recoil, isn't the front of the barrel moving upwards? Or are you so good that you can control this better than others.
Aprilian- Posts : 987
Join date : 2016-05-13
Location : Minnesota
Re: Springs in a 1911
Even though this video is for steel challenge, it really demonstrates the effect of recoil spring weights.
https://www.youtube.com/watch?v=w3UVLm2GajI
Cheers,
Joel
https://www.youtube.com/watch?v=w3UVLm2GajI
Cheers,
Joel
1joel1- Posts : 401
Join date : 2012-11-09
Location : San Diego, CA
Re: Springs in a 1911
mikemyers wrote:Interesting - the Les Baer Premier II that I bought a few years ago came with an 18# spring. They sold me a 16# spring as something "lighter".kc.crawford.7 wrote:You're going to find that A LOT more things will depend on what your recoil and mainspring weights are. Barrel fit, bushing fit, lockup on slide stop pin, chamber just to name a few. Do some experimenting with your gun and find out what works for you.
I can just about guarantee that an 18.5 recoil spring will make the front of your pistol dip when it goes back into battery.
For Bullseye shooting ONLY, using Magnus #801 bullets, and 4 grains Bullseye powder, what spring do you recommend?
Does anyone sell a simple spring weight tester? I've seen a handmade tester in this forum, but I don't have the materials with which to make one.
KC, I don't understand - because of recoil, isn't the front of the barrel moving upwards? Or are you so good that you can control this better than others.
Here's a spring tester you can buy... https://www.ebay.com/itm/45-cal-Spring-Tester/142966437284?hash=item214976b5a4:g:xlgAAMXQltxQ8NP4
For a 1911 45 Auto shooting light bullseye loads, with a slide-mounted red dot, I usually see people recommend 10lbs or 12lbs recoil spring (sometimes 9lbs), and 18lbs or 19lbs hammer/main spring. Those are just starting points. You have to see what works with your loads in your gun.
KC is referring to the front dipping down as the slide is closing / moving forward. The heavy spring pushes (i.e. slams) the slide forward with more vigor.
Dave
Re: Springs in a 1911
Thank you - that video made it quite obvious. The slide is already moving "down", and the "slamming home" adds to it. .....something I never thought of before.Aprilian wrote:Mike, You can see in this video that the slide "slamming home" causes a rotational force. The closer to "kissing" into lockup, the less that rotational force translates into nose dive.
mikemyers- Posts : 4236
Join date : 2016-07-26
Age : 80
Location : South Florida, and India
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