Tom
Well-Known Member
I have a 788 in 308 that shoots great with Speer 165 spbt, but I have never tried cast in it.
I did a pound cast and it measures .3146 just ahead of the chamber. 1/4" up, it measures .3105.
I'm thinking I need to go with the .3105 number,and size to .31. Does that sound right?
The noe 315 saeco clone only measures. .307 at that point, cast from 50 50 ww/pb. I haven't tried straight ww with tin yet, maybe that would get me a little closer. I don't have lino, and don't really want to go that hard. Maybe just jamming into the lands would give good results?
The groove diameter at the chamber end is .3082"
I did a pound cast and it measures .3146 just ahead of the chamber. 1/4" up, it measures .3105.
I'm thinking I need to go with the .3105 number,and size to .31. Does that sound right?
The noe 315 saeco clone only measures. .307 at that point, cast from 50 50 ww/pb. I haven't tried straight ww with tin yet, maybe that would get me a little closer. I don't have lino, and don't really want to go that hard. Maybe just jamming into the lands would give good results?
The groove diameter at the chamber end is .3082"