Quote:
Originally Posted by BUFF
"Is it possible that S&W used a heavy spring because factory ammo had rifle primers?"
I don't know the reason for it but I have noticed a heavier trigger pull on .32-20 M&P's than on .38 Special M&P's from the same era.
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The 32-20 (32WCF) was originally a rifle round when intro'd and loaded with small rifle primers. Older loading manuals specified SR primers,,the Lyman Cast Bullet Guide still does. Maybe others do.
Most think of the 32WCF as a handgun round and many load it with SP primers now. They do just fine generally as most load it down with the older guns and SASS use demands. Plenty of modern barnburner 32Mags around if you want one.
SP and SR primers are the same size as far as height,,unlike LP and LR that differ in height.
The heavier cup material of the SR primer used in factory ammo early on may be a reason for a heavier mainspring in the older 32-20 revolvers.
Just a guess on my part of course..
Nice bunch of 32 HE's!
My only one is a Colt SAA, it's poor bore makes it only a fun noise maker,,not much in the accuracy dept.