Picture:Backstrap cutting, Ruger: Comments..?

Peter, Thanks for the picture .

My Topstrap kinda looked like your picture , before I started shooting
Vihtavuori N120 . Additional cutting (Picture )in about 125 rounds...

I will take your suggestion and go to 4227....What primer are you using ???

And , Yes the Barrel does get Hot !!!
 
So is N120 a ball powder? I would guess that if my theory is right. I have never used any of the vit powders so I am not sure and a quick google shot did not tell me anything.

I am using Winchester Small Rifle primers in general. I have experimented with Small Pistol Magnum primers but did not see any advantage to it. I have had some good luck with H4227 and more so with IMR-4227 which was replaced by H4227 and renamed IMR-4227. If you follow the logic of that you are better then I but in the end there is now only 4227.

I tried RL7 but it did not work well so I went back to 4227. I like the stick nature of the stuff and it works well.

Maybe we should start a thread in the reloading area on 357 Maximum loads for the Ruger and see what pops up?


Finally, read this article if you have not already. It is one of the best out there on the beast.

http://www.lasc.us/Fryxell357Max.htm

Let me know what I can do to help.
 
I've often thought that some type of expendable/sacrificial insert or shield would work to mitigate top strap cutting. Perhaps a formed piece of stainless flat stock thin enough to fit between the underside of the top strap and outside of the cylinder that snaps in place via a couple "ears" around the edges of the top strap. I've got a couple ideas about how to keep it in place while firing. It would be easy for some one with a forming die to punch out in quantity. It wouldn't be pretty, but it would preserve your frame. Wouldn't do anything for the barrel/forcing cone, but the barrel is more easily replaced.
 
BBBBill,

I was thinking the same thing. I figured when/if the cut gets long enough and deep enough I would be able to use it as a "mount point" to take a thin piece of steel and form a lip so it would go forward between the barrel and the frame and then in the flame cut and back just a bit toward the rear.

Heck, the first shot it will get hit with about 40,000 psi of pressure, that ought to swage it in the flame cut pretty good.

Anyway, the problem has not gotten much worse so I just figured I would monitor the problem and keep blasting.
 
You must log in or register to reply here.
Back
Top