Hi, Swifty:
Rmouleart could be right. The benchresters figure accuracy can go up, down, up, down, up again as velocity increases. It depends on your barrel and a change to a faster or slower powder can change everything.
However, you could be pushing your bullet or lube past it's limits. First, modern IMR powders made by Expro of Quebec is faster than the DuPont powder of Elmer's day. Second, your bullet might be too soft for that velocity. Third, your lube might be failing. IIRC, Veral Smith was shooting a .30-06 and his own lube with no problems. He tried Alox lube on one bullet and blew the primer.
Bye
Jack
Rmouleart could be right. The benchresters figure accuracy can go up, down, up, down, up again as velocity increases. It depends on your barrel and a change to a faster or slower powder can change everything.
However, you could be pushing your bullet or lube past it's limits. First, modern IMR powders made by Expro of Quebec is faster than the DuPont powder of Elmer's day. Second, your bullet might be too soft for that velocity. Third, your lube might be failing. IIRC, Veral Smith was shooting a .30-06 and his own lube with no problems. He tried Alox lube on one bullet and blew the primer.
Bye
Jack