S&W Cylinder Stop Spring?

Oldspeed · June 26, 2000, 03:20 PM

Hello,
I own a S&W Model 27-4 in .357 with a 8 3/8" brl. that I use for target shooting. I am going to install a Wolff reduced power kit with mainspring and rebound spring for a lighter trigger pull. I notice that Wolff also lists a heavy dury cylinder stop spring. Any advantage to using one of these? Seems that I read once that S&W went to a heaver spring in their Model 29 once but I don't remember the reason?
Thanks

beemerb · June 26, 2000, 05:25 PM

This is just a guess but I would say it locks up the cylinder faster.When the trigger hook releases the cylinder bolt the stronger spring would make the cylinder bolt move faster and decrease lock time,
My guess.

------------------
beemerb
We have a criminal jury system which is superior to any in the world;
and its efficiency is only marred by the difficulty of finding twelve men
every day who don't know anything and can't read.
-Mark Twain

George Stringer · June 26, 2000, 07:12 PM

Oldspeed, the reason S&W went to a stronger cylinder stop spring in the 29 was that the cylinder had a bad habit of bouncing and revolving backward when using heavy loads. You would actually end up dropping the hammer on the same primer twice. I've never known of a Model 27 experiencing this problem so it probably wouldn't help you. As a matter of fact it will work against the lighter pull you are trying to acheive. Lock time is the time it takes for the firing pin to strike the primer once the trigger is pulled. In the design of the S&W revolvers the cylinder stop won't effect lock time. George

Oldspeed · June 28, 2000, 03:25 AM

Thanks for the input. It appears that a H.D. spring is only needed in a Model 29 firing .44 Mag.
Thanks

June 26, 2000, 03:20 PM	#1
Oldspeed Member Join Date: February 10, 2000 Posts: 96	Hello, I own a S&W Model 27-4 in .357 with a 8 3/8" brl. that I use for target shooting. I am going to install a Wolff reduced power kit with mainspring and rebound spring for a lighter trigger pull. I notice that Wolff also lists a heavy dury cylinder stop spring. Any advantage to using one of these? Seems that I read once that S&W went to a heaver spring in their Model 29 once but I don't remember the reason? Thanks

June 26, 2000, 05:25 PM	#2
beemerb Junior member Join Date: October 2, 1999 Location: AZ Posts: 1,759	This is just a guess but I would say it locks up the cylinder faster.When the trigger hook releases the cylinder bolt the stronger spring would make the cylinder bolt move faster and decrease lock time, My guess. ------------------ beemerb We have a criminal jury system which is superior to any in the world; and its efficiency is only marred by the difficulty of finding twelve men every day who don't know anything and can't read. -Mark Twain

June 26, 2000, 07:12 PM	#3
George Stringer Staff Alumnus Join Date: October 12, 1998 Location: Earlington KY Posts: 2,299	Oldspeed, the reason S&W went to a stronger cylinder stop spring in the 29 was that the cylinder had a bad habit of bouncing and revolving backward when using heavy loads. You would actually end up dropping the hammer on the same primer twice. I've never known of a Model 27 experiencing this problem so it probably wouldn't help you. As a matter of fact it will work against the lighter pull you are trying to acheive. Lock time is the time it takes for the firing pin to strike the primer once the trigger is pulled. In the design of the S&W revolvers the cylinder stop won't effect lock time. George

June 28, 2000, 03:25 AM	#4
Oldspeed Member Join Date: February 10, 2000 Posts: 96	Thanks for the input. It appears that a H.D. spring is only needed in a Model 29 firing .44 Mag. Thanks