.357 Mag cylinder flash

T

triplepete

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So I have been reloading .357 Mag and I notice than I am getting a lot of flash coming from between the barrel and cylinder. I have tried Tite Group, Bulls Eye, and Unque all at starting loads and never as powerful as factory loads - only factory loads have no cylinder flash. This happened on my GP100 4.2" and Blackhawk 6.5"

Anyone know what I'm doing wrong?
 
none of those powders are really good for 357 magnum, try something slower burning like 2400

i use 14.8 grains of 2400 behind a 158 gr plated projectile and i've never really noticed cylinder flash
 
I have been shooting reloads in my ruger gp 100 4.2 that are 158gr lead cast with 3.2 grs of bullseye. They don't spit. With more powerful loads I have had commerical ammo spit.
 
All revolvers spit pressure out of the gap between the cylinder and the forcing cone. They lose power, how much power lost depends on how loose, or how tight, the gap is. This is why the same cartridge fired in an autoloading gun has more velocity than when fired in a revolver, with same length barrels.
High pressure guns, like the magnums, spit more pressure out.
The reason for the visible fire in the oadsof the OP has been pointed out. The use of very fast burning powder, which is not what is loaded in factory rounds.
If anyone thinks their revolver is not spitting, try holding your off hand, so it is in line with the gap, when you fire the revolver! (Don't really try it, you could injure your hand.)
 
H4831 said:
If anyone thinks their revolver is not spitting, try holding your off hand, so it is in line with the gap, when you fire the revolver! (Don't really try it, you could injure your hand.)
Click to expand...

Just try shooting at dusk, or with half the lights off in an indoor range. It is surprising how much flame comes shooting out the gap, especially with heavy loads.


Mark
 
All my shots are fired at indoor ranges and reloaded with Berry 158 copper plated hollow points. Like I said the flash is huge with my reloads, less with factory. My reloads are not nearly as powerful as factory. Factory loads have much more kick and little to no flash.

My crimps are not as tight as factory either. I also experimented loading 115 grain 9mm RN copper plated too, same huge flash with virtually no kick.
 
H4831 said:
All revolvers spit pressure out of the gap between the cylinder and the forcing cone. They lose power, how much power lost depends on how loose, or how tight, the gap is. This is why the same cartridge fired in an autoloading gun has more velocity than when fired in a revolver, with same length barrels.
High pressure guns, like the magnums, spit more pressure out.
The reason for the visible fire in the oadsof the OP has been pointed out. The use of very fast burning powder, which is not what is loaded in factory rounds.
If anyone thinks their revolver is not spitting, try holding your off hand, so it is in line with the gap, when you fire the revolver! (Don't really try it, you could injure your hand.)
Click to expand...

Yikes!...they did that on a Mythbusters episode with chicken parts and a S&W 44 mag (I think). Anyways...made mincemeat of the chicken parts in certain positions near the cylinder. It wuz gross actually.
 
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