5 Attachment(s)
A couple of S&W Model 64 forcing cones
Swapping out barrels on a pair of S&W Model 64-6's. I've heard that running the light weight 357 magnum loads were hard on the K frame forcing cones. It looks like it's not much better running the light weight 38 spl +P's. These were a couple of police trade ins that have seen plenty of range time with +P ammunition. Both forcing cones have quite a bit of erosion, not to mention both being cracked.
I have a few high round count Model 19's 64's & 66's that have nowhere near the ware these two revolvers show. But then again I stick with 158 grain bullets and don't try to hot rod them.
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A couple of S&W Model 64 forcing cones
Quote:
Originally Posted by
Jniedbalski
What causes this in the model 64 S&W k frame guns that usually don't happen in other models and 357 guns? Or is it just from a lot of use
K frame S&W revolvers have a flat portion on the bottom of the barrel. While this is a weaker spot for 38 and 357 cal guns the strength is sufficient for normal 38 and 357 loads. Supposedly most guns that crack are a combination of heavy leading in the forcing cone along with light 125gr (or lighter) jacketed bullets pushed by over max loads of ball powder.
The K frame 357s were designed as a carry gun to be practiced with 38s and occasionally familiarized with 357s.
When 110gr and 125gr 357mag loads became popular the K frame developed a reputation as weak when compared to the Ruger Six line and various medium framed Colts. S&Ws answer was the L frame for those that felt the need to shoot a steady diet of 357mags.
The S&W K frame model 19s are easily my favorite revolvers ever produced.
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