Looking for advise on factory loads for a 300Wm at ELR

[Dougnutz]

I'm heading to a competition (mainly learning for me) with distances of 700-1800 yards. Maybe a 2k as well. Having only shot 700 yards I am curious about the effects of the bullet falling below supersonic. Based on my calculator (Streloc ) the Hornady 195 GR ELD-Match will be subsonic at 1300 yards, down to 950 at 1800. I also picked up some Berger 230 Grain Hybrid OTM that should push that out to 1500 yards. I know the Hornady 195's shoot really well in my RPR, I haven't fired the heaver Bergers though.

I'm curious how much should I worry about the bullet going subsonic, how much does it change trajectory if at all?

Are there other factory loads I should consider?

 

[clcustom1911]

My buddy runs his 300WM with a Bartlein 1:9 barrel with 76 or 77g of H1000, Norma Brass. ****VERY HOT LOAD**** DO NOT START THERE. I personally have shot that rifle out to 1685 and 1500. That bullet transitions well based on my experiences.