A cupla I woulds for ya.
Stay away from boat tail bullets.
Anneal your bullets.
Use the longest bullets I could find with the most parrellel sides I could find.
You wont see any gain by using match bullets in those rifles. A boat tail is sacrificing bearing surface and I think you need all you can get. Give them things what they was made for, long heavy round nose bullets totally supported for nearly all thier length.
Now if ya cant find nuthin I got some old Herters bullets that might do it for ya.
Wut ya got ta trade?
Blessings
BIC/BS