I have a great BRNO 602 action with a fantastic piece of aftermarket wood stock. It is in the orginal .375 HH now and I want to go to something bigger.

The largest I own now in a BRNO is a .416 Rigby so I wanted something larger. .458 Lott - .505 Gibbs -- 510 A-Square - 450 Ackley???...

What are your suggestions?

I was thinking of say a 500 A -Square?? or similar.

Do any of you know what the bore of the .375 HH BRNO bbl can be re-bored into? I was thinking of possibly keeping the existing profile and doing the re-bore.

What about suggestions of the make of bbl -- any thoughts on which is a better brand for the larger bores?

thank you for any thoughts.