Quote:
Originally Posted by TrapperMike
Why would the steel shot affect it. It’s my understanding that the shot never touches the barrel as it is inside the wad until it leaves the barrel?
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Steel shot has three major differences than lead when it comes to barrels.
The first is that it needs very heavy wall thickness on the wads because of its hardness
The second is that because it does not compress like lead does, so a condition called Bridging can happen if the forcing cone of the gun is too abrupt, or the choke constriction is too abrupt and too tight.
The third, is that when lead is compressed , its lubricity increases, steel does not compress so the lack of lubricity adds too the bridging effect.
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