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Is there a maximum safe distance to jump bullets?

Falar

Gunny Sergeant
Full Member
Minuteman
Mar 28, 2009
980
55
Midland, TX
I'm thinking about throating a .30-06 REALLY long, as in long enough to load the 208gr A-max to a COAL of about 3.6" and be .020" or so off the lands since I'll be feeding from .300 WM AICS mags and they allow 3.65". My only concern is that if I do this I could never use factory ammo that is loaded to 3.25 or 3.3 or load any bullets that can't be seated out past 3.4 or so. .250-.300 jump just seems like a LOOONG way and I don't know if it is a good idea or not. Don't know if there is a point where too much freebore can actually become unsafe.

I imagine this comes up with guys who throat rifles for 90gr bullets in .223 also. Since they load up to 2.6 COAL with those and factory ammo is all going to be 2.26ish.