Re: Gunwerks vs HSM 7mm Rem Mag 168 VLD
There is a million posts about the berger bullet and seating depth, which is likely the only difference between those two loads. Pretty obvious the Gunwerks ammo is seated slightly longer. You first do want to see if it fits in your mag, and then cycles properly. Berger has noted that these bullets are sensitive to seating depth and they recommend using .040" variances, starting with them touching the rifling, then backing out .040", until you find a length they like the best. If your gun likes Bergers at all, and many will, it just may not like them at the seating depth these manufacturers make them in.
I believe both these manufacturers use Win Brass, Fed 215 primers, and Retumbo powder. If not Retumbo in might be H1000, but I know it is an Extreme Powder as they claim the loads to not be temp sensitive.
I have a Sako that likes this very formula, seated to kiss the rifling. I just picked up a Browning A-Bolt with a short magazine, and it happens to love them seated to the Mag length, which is exactly .080" short of the rifling.