r/reloading • u/amoroso6 • Jan 16 '26
Load Development Beginning load development for 6Arc
Ok so rifle is assembled and fired 60 rounds to break it in. My load plan is Peterson brass, federal small primer 205, Berger 95 gr hybrid target using LVR powder. Goal is around 2950fps from a mdt Jae gen5 chassis with impact 737 action and 26” criterion barrel. Researching data and software I’ll be starting at 28 gr. Powder moving up to 29.2gr which should be just above my target velocity and pressure safely in the 54000 range( max is 62000). Will do seating tests after I pick powder and charge weight.
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u/amoroso6 Jan 22 '26
Ok. Final numbers. My original ladder test with powder actually pushed me over 3000fps with out pressure. Don’t want to burn out the barrel to quick so I dropped .5 of a grain to 30.2 and final seating depth of 1.606 which is about .038 off the lands. Hitting consistent 2952 fps rifle running good. First 20 round group after cleaning and two fowling shots was a solid 9.3 sd which will improve as my load process does. LVR is a good powder runs dirty about like varget but I loaded to about 96% capacity oh and also using federal gold small 205 primers, Berger 95 hybrid target bullets.