I am trying to narrow my choices for starting load development. I have 40 and 46gr bullets, with 1680, 296, H4227 and 2400 powder on hand. In a 10" barrel what starting combination would be recommended with accuracy being more important than velocity. SP or SR primers? Thanks

40 gr V-Max and 2680. Once new brass is fireformen in that barrel just neck size about 1/4" of the neck and case life will sky rocket.
Oh, and small pistol primers.

Hi Scott, thanks for the tips. I'll post my load results when I can.