cast sizing question

[bryonbush]

so i slugged my barrel last night because i was bord. heres what i found out: inside the grooves its .391, outside of the groves it was .400 and the cast bullet itself is .402. is it worth getting a sizer dye for it? i hope this info makes sence. what advice to you guys offer at this point?

 

[Charley]

Most cast bullets should run .001 or .002 over groove diameter for best accuracy. You should be fine with .402 bullets, as long as they chamber properly.