Thread: 338br/whisper load development

I created a good load using 20 odd grains of n110 throwing 175gr cutting edge maximus projectiles around 2250fps, these have energy to expand out to around 400m and I'm currently hitting gongs at 550 with a 0.34moa 100m grouping.

I'm about to start my subsonic load dev also. The old load was throwing a 300gr hpbt sierra @1050fps with 12.5gr of n110. My new projectiles are the peregrine 280gr which jaco got in for me. I'm mainly aiming to get the speed down to 1050fps, then look for a node from there.
Should I be just shooting and chronoing say 10.5g, 11g, 11.5g and 12g of n110? Find the closest speed to 1050, then go in a few .2gr increments up and down to find a good es ?? Then play with sesting depth for the group tightness ? I hear cncd copper bullets need to have a big jump also ?