Flame cutting on an N Frame

This is a discussion on Flame cutting on an N Frame within the General Firearm Discussion forums, part of the Related Topics category; I purchased an N Frame 357 mag model 627 a while back and finally put together handloads consisting of 158 grn swc Oregon trail laser ...

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Thread: Flame cutting on an N Frame

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    VIP Member Array glockman10mm's Avatar
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    Flame cutting on an N Frame

    I purchased an N Frame 357 mag model 627 a while back and finally put together handloads consisting of 158 grn swc Oregon trail laser cast bullets over 14.5 grains of 2400. This is a heavy load that I have used for years but is a very hot load, that is why I went for the N frame for use with it. I chronographed the loads at 1285-1330 fps from the 4 inch barrel. accuracy was very good and there was no sign of leading even after about 40 shots. While cleaning I noticed some flame cutting on the top strap where the forcing cone and cylinder meet. I remember reading some years ago that this was normal and would stop at a certain point. I would like the opinion of others here who have experiance and knowledge in this. As a note, there is signs of high pressure in the form of slightly hard to extract cases and some primer flattening. However, factory fodder in the late 70s to late 80s dispayed the same characteristics before they started watering them down, so I am not concerned about slightly high pressure in an N frame. Do you think flame cutting is normal?

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    Yep.
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    I've fired a number of hot magnum loads through both .357 Magnum and .44 Magnum N-Frame revolvers. Don't worry about it. It will stop.

    In the .357 Magnum I use much the same load as you do only 1/2 grain more 2400. My favorite Smith & Wesson Model 27 has fired a number of these loads since I got it new in 1981.

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