I've finally accumulated all the hardware to build a little 6x45 (6mm-223). I'm really excited so thought I'd let you in on my ideas. I don't have a workshop at the moment but hopefully that will be resolved at some stage this year.
I liked the idea of a 6x47 based on the 222 Rem Mag but chose the 6x45 because of the better availability of .223 brass.
The rifle is a sako 75 A1 .222Rem. It will feel a bit wasteful to remove the barrel that shoots really well! The barrel blank is a 1:8 Pac Nor Cro-moly sporter profile. I would like to try shooting 70gr Matchkings (3100fps?) and 85gr Gamekings (2900fps? - I wonder if a large deer legal 3000 can be reached?) I'll also see how I get on with 95gr MK's or TMK's for fun. I can seat bullets to 2.360" COAL in the sako magazine.
Barrel blank measures 25" - I'm hoping for the finished barrel length to be 24" or maybe a bit less. I think I'll get the barrel cerakoted but am loathe to cerakote the action as the bluing has such a lovely deep lustre.
Also got the dies, floating pilot finishing reamer and go/ no go gauges.
Hope this is of interest to some of you. Any ideas or comments are welcome.