Well I sold both the 1910s as the bores were just too bad.
Found a 1905 280 claimed to be excelent and it's on the way to me.
As the 1905 has no rear bridge, mounting a scope will be "interesting".
May have to dig deep and go with a G&H side mount.
More to follow !
Woodleigh makes (IMHO) the best bullet for the 7x57. The 175 gr SP. It like the 160 gr in the 6.5x55 is a sure killer with excellent accuracy and terminal performance.
It's the top one.
After all the messing around I have decided to buy the Buffalo Arms brass that is already made.
Regular loads don't iron out the 375 Ruger brass. The 300 WinMag works fine but why bother ?
Just found anther 280 with a MUCH better bore than either of my other 2.
Recently purchased two M 10 280 rifles.
Currently working on the 28" bbled one.
Found cases from Buffalo Arms, dies from C&H and bullets .287 from Woodleigh.
Using 7mm Rem mag starting loads and getting 3 shot cloverleafs @50 yards from a worn and pitted bore.
Also figured how to make cases...