Jim, the decrease in powder corresponds, I assume, to decreased capacity in the Alpha & Peterson brass ? Currently I’m running 32.0 gr. Of Varget behind 107 SMKs.Lapua Brass, 32.2-32.7 Varget, CCI 400 or 450’s. .005-.015 in the rifling. With anyone else’s load suggestion’s, always always always approach these quantities of powder with caution. Works with 60-70% of my barrels. If not try H4895 at a full grain less and RL15 up to the low 33’s. Alpha or Peterson brass will probably take 2-4 tenths of a grain less powder.
Hope this helps
Jim Bauer
I can assure you that 107’s won’t hold you back, you may want to sort them.Jim, the decrease in powder corresponds, I assume, to decreased capacity in the Alpha & Peterson brass ? Currently I’m running 32.0 gr. Of Varget behind 107 SMKs.
Just keep in mind the barrel may like or may not like that particular bullet. If after some tuning it doesn't show promise, I'd tuck them away and try them with your next barrel.Thanks for all the suggestions, guys. I have a sealed box of high end Bullets squirreled away that I’ve been itching to try. I am trying to determine if the extra cost is worth it , considering my shooting ability. Good shooting to you all.
The Newer, "Tipped" 107' SMK's are, pretty Awesome,.. at Touching to, Light Jam, in My 6 XC !I can assure you that 107’s won’t hold you back, you may want to sort them.
I'm shooting the exact same load in my DasherMine likes 32.0 gr Varget with 103s. BR4 primer and Alpha brass.
Ave 2984 fps
SD 4.8
I am also shooting this same load in my Dasher, but about 2950 fps in 27" barrelI'm shooting the exact same load in my Dasher