I shoot a 30 HV which is a wildcat from Dave Tooley. Its a 404 necked down to a 30 cal. Similar to a 300 Ultra. I usually shoot 90 gr of H870 with a Sierra 220 hpbt match and 95 grains with a Sierra 200 gr hpbt match. Didnt get a chance to crono them, but the 200 shoots alot faster(they both will put all the shots touching at a 100 yards if I do my part).
Have load for 165gr. sierra HPBT, shoots sub
min. It is 103gr H870 @ 3155fps (o.a.l. is 3.535). This load wasn't hot in my rifle but precautions should always be taken, drop a few gr and go up! Velocity will probably be greater in your gun, mine is factory savage
with 24" barrel.