I bought my first rifle in the early 90's and have dropped countless 4 legged critters. The rig is Browning A-Bolt camo stalker (laminated green/black stock) chambered for .270. Unfortunately, the groups are starting to open up and I believe a new barrel is in the future. Now I feel very fortunate that I have several rifles to which cover the caliber spectrum. Now I DON'T have a problem with the 270 and wouldn't hesitate to rebarrel it again in 270. However, I'm at least looking at the other "options". #1 can I open the bolt face up to handle say 300win mag? For the clip, is it as simple as a 300 win mag clip replacement? #2 any suggestions in calibers close to the .270 head diameter #3 really been wanting to build a 7mm-08. I'm more of a Rem700 guy so I don't look at this action as the best donor. Will I have feed troubles going short action caliber with the longer bolt throw? I'm not looking to build a BR gun and I have other rifles for the really long range shooting. I want the gun to be of average weight that is ultimately as reliable has it has been over the last 18ish years. Thanks folks!!