Originally Posted by patbrennan
I am looking for some info on what is involved in converting a std (06 length) pre 64 action to take the H&H length cases. (7mm Mashburn or more likely 300 H&H) Also, some learned advice on the advisability of going that route could prove helpful.
I currently have a couple "extra" barrelled actions (both 270s) but with a very good 270 and 30-06 fwt already there is some redundancy so I am looking into my options!


BobinNH used a 270 Classic action for his 7mm Mashburn Super. Simillion built his rifle and said by the time he works over an action the little extra to make it longer to accept a 3.6” cartridge isn’t too awfully much more. Kevin Weaver is another that’ll do the machine work to make everything work nicely.

Anyone that has a lead on where magnum P64’s are please post them up. I don’t see them regularly in my searches.

Last edited by beretzs; 09/22/20.

Semper Fi