Hello matt85,
Thanks for the reply.
I am very happy with my load development for my VC 600 NE. Below are the details of my handloading to date.
Elmer Keith once wrote about the 75% rule for double rifles. He said you shoot either a "full charge" with 75% bullet weight (2,000 fps MV with a 675g bullet) or, a 75% charge with a "full bullet weight". (1,500 fps MV with a 900g bullet)
In my rifle, the first option would result in 93.9 ft/lbs of felt recoil with 5,996 ft/lbs of muzzle energy - and the second option would give 63.3 ft/lbs of felt recoil with 4,467 ft/lbs of muzzle energy. Since a common deer cartridge in Wisconsin is a .308 win cal. which gives about 2,700 ft/lbs of muzzle energy, and not wanting to beat myself up with unnecessary recoil, I chose the second option, which actually gives more than enough energy.
I've developed this reduced load to shoot "point of aim" at 50 yds at about 75% velocity, using both the 900g Barnes solid (old style made from copper tubing) and the 900g cast bullet of my design,
I'll be using my 600 NE this fall - hopefully to bag a Wisconsin Whitetail Deer. I am particularly pleased with this guns first pair from a cold start - when you look at the targets below, you can see that R1 and L1 group exactly 1 inch.