My 280 Remington Wby Mk V UL posted one hole groups with H4831SC, 1/2 moa with Imr4350, 1/4 moa with VV N165....all with 140 AB's.

My 280 Remington Encore posted 3/8" with 150 Partitions & Imr7828SSC.

My 280 Ackley Borden custom posted 1/4 moa with VV N165 & 140 AB's.

Reloder 23 & 26 are awaiting testing.

By the way, in case you missed it, Jeremiah was a bullfrog.