Well put SDB777. I think barrels are like snowflakes no two are the same. I have seen two barrels by the same manufacturer made at the same time using the same ammo that produce different velocities.
I have two of my 338 THUMPERS one 12" one 16". I have loads that are faster in the 12" then in the 16". They were made from the same blank with the same reamer one right after the other.
rsilvers are you talking about subsonic or supersonic loads? What bullets and what powder are you using? What are the twist rates of the barrels? We need more info.
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