I've done some Googling around and searching here on the Hide, but freebore is still a tad of a mystery to me. I know that freebore is the distance from the front of the chamber to where the rifling begins (the leade). Currently, I haven't had to worry about freebore too much; factory Remington's have miles of it, so I loaded 175 SMK's to mag length and jumped them as far as I needed. When I rebarrel, how do I know what kind of freebore to put in the barrel?
The barrel is going to be a 6.5 (either .260 or 6.5x47 Lapua) and I want to shoot heavy-for-caliber bullets (either 147 ELD-M, or the new Sierra 150 SMK). I'm probably going to ARC mags with my switch, so COAL is going to be 2.97" max. I'd like to be able to chase the lands a little as the barrel wears. I don't think the x47 will have COAL problems, but the .260 probably will. How do I figure out what I need?
Also, many reamers I've seen have freebore built into them so everything is cut on the same pass. Can most gunsmiths custom ream the freebore longer is it's needed?
Thank you for the help.
The barrel is going to be a 6.5 (either .260 or 6.5x47 Lapua) and I want to shoot heavy-for-caliber bullets (either 147 ELD-M, or the new Sierra 150 SMK). I'm probably going to ARC mags with my switch, so COAL is going to be 2.97" max. I'd like to be able to chase the lands a little as the barrel wears. I don't think the x47 will have COAL problems, but the .260 probably will. How do I figure out what I need?
Also, many reamers I've seen have freebore built into them so everything is cut on the same pass. Can most gunsmiths custom ream the freebore longer is it's needed?
Thank you for the help.