I am using a long throated 34' barrel for long range shooting in a 308. To gain more velocity I need more powder and to use more powder I need more case capacity.
Q. can I lengthen the chamber to accmodate a 30-06 cartridge to gain the extra capacity and not run into dangerous grounds.
What effect will it have on pressures.
I was planing to use a slower burning powder and more of it.

Cheers
Q. can I lengthen the chamber to accmodate a 30-06 cartridge to gain the extra capacity and not run into dangerous grounds.
What effect will it have on pressures.
I was planing to use a slower burning powder and more of it.

Cheers