I've got a REM 700 24" factory barrell, Choate varmint stock, 6x20 Vortex Viper, and a really lighten trigger. I'm working up a load with H4350, 180 grn accubonds. Anybody have any experience with H4350 vs IMR4350? I use them one antelope, deer, and elk in varying conditions from mid 70's down to about -30. I'm looking more for consitancy at distance vs speed.