What a difference when you switch to a new lot of powder. This time for the better!
I was getting about 2900 from my first jug of H-4350. That is decent velocity that will kill any whitetail on earth, but I was honestly expecting a little more.
Today, I loaded 12 rounds using a different lot of H-4350 powder and the new jug averaged 2996! In fairness, I also switched to Remington brass instead of Winchester nickel brass. The charge is the same 56.0 grains and CCI-200 primer.
I'm very pleased to finally be getting the velocity I was hoping for when I had Pac Nor install this barrel on my rifle. The best part is the 3-shot group today was 3/8". I'm obviously not expecting that group every time. However, it is nice to know this Ruger/Pac Nor 280 is a keeper.
Ruger 77 MK/II stainless
McMillan Classic (50/50 black/white)
Timney trigger
Pac Nor SS 22" factory contour barrel
Nosler 140 Accubond
56.0 H-4350
3.345 OAL
CCI-200
Remington brass
And yes, I did work up to this charge watching for signs of pressure. This works in {my} rifle.
As you know, you need to safely work up all loads in {your} rifles.
