Re: 243 LBC brass
The 243 LBC is a great long range round. Of course you cry a bit if you loose a piece of brass but not too badly. I think that I may well build one for very long range target matches. The 6X45 does, of course, have the cheap brass but sometimes you have to spend the $$'s to get the results.
PS: I think this new 6 MM wildcat will be like a 6X45 on steroids. They sure look neat and the groups are super so far.
The best gun for self defense? Any loaded one will do!