Betcha get a BUNCH of responses on that offer.

Wish I had a 550 to swap with you.

I am no mauser expert but the BRNO 602's I have seen seem to be a better quality action than the 550's and require less work.

Finally found a 602 BRNO based big bore rifle on auctionarms and will probably buy it as Luv2safari made off with my SS 375 Win 70!!

You may want to hang onto that BRNO 375!