Well my first proper thread. I have a tikka 595 master sporter in 22-250 which I would like to rebarrel and I have come down to a couple of calibres that I am interested in. It is to be a dual purpose rifle, for long range varminting and for the smaller deer species we get in the UK ie roe and muntjac, at extended ranges if necessary. It may also get a bit of a go at long range target shooting. I would like to be able to utilise a 308 magazine in the rifle and it is a short action. The two calibres I have been looking at are: 243 ackley 6-6.5x47lapua I would like to shoot the 105 bergers or 115 bergers, I was hoping that someone on here may be able to offer advice on these bullets and also some data. Also barrel length suggestions I am thinking 24 inches heavy sendero profile? I am open to suggestions on other potential cartridges and the merits of them versus those above, and obviously the merits of the two listed above. Any help comment or suggestion would be greatfully recieved. I look forward to your thoughts.