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There is an Interesting article by M.L. McPherson in Precision
shooting Magazine, Feb. #57.
He said that magnum level pistol caliber loads will build more chamber pressure in a revolver than that same load will have in a rifle.
It is thought that the chamber lead , cylinder gap and forcing cone would have the opposite effect but due to the bullet obturating twice and being swaged back down to traverse the barrel that more time is allowed to burn more powder in the revolver compared to the rifle . The time of burn results in greater chamber pressures in the revolver.
It does make sense though. I found out early that factory .45 Colt ammo will show excessive pressures when fired from a cylinder with undersized throats.
So going from step to step to step down increasing pressure just makes sense.
Joe
***Be sneaky, get closer, bust the cap on him when you can put the ball where it counts .***
That could help explain Mr. Bob Baker's observations on the erosive effects of Lil'Gun in revolvers that I don't see in the rifles in which I use it. I really don't use it in revolvers, I think I've fired a grand total of 6-12 rounds of .357 Mag stuff just to see what it would do. Oh, almost forgot, I have tried it in the .32 H&R Mag Single-Six.
Sincerely,
Hobie
"We are all travelers in the wilderness of this world, and the best that we find in our travels is an honest friend." Robert Louis Stevenson
.***