Quote:
A 7mm or 8mm barrel will likely taper from 19 or 20 mm where the taper starts in front of the chamber, down to 14-and-a-bit mm at the muzzle. Front sight ramps consequently need a little bit of fiddling to fit properly.
And IMHO you won't want a mill-bastard front sight ramp! Pretty simple to just file-cut the ramp for ribbing or checkering.
Yes I’m sure you’re right - I’ve just been experimenting and my new Sykes pickavant thread file will cut down to 34lpi which Looks plenty fine enough, I think it will come up well. So my only hurdle is cutting the concave for the barrel.
And yes the barrel tapers from 19.2 to 14.99mm at the muzzle (as per spud303s)
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Re: 7x57 Type B Oberndorf style build