If I am using 80 grs. of 7828, where should I start with Retumbo ?
I am using 80.0 of 7828 in my 300 WBY, at 3000 fps. The load is very accurate, an honest 1/4-1/3 MOA rifle at 300 yards if I do my job. The problem is the load is very hot in my rifle and when the temps climb into the 90 degree range my bolt gets sticky, hard on cases also. My load density is approx 95% with the 7828. I bought a pound of Retumbo and H1000. I figured I would give Retumbo a shot.
Since it is slower burning can I start at 79 grains of Retumbo and work up from there ?
Since the rifle likes the 3000 fps area for these bullets (Berger 210) is that the velocity I should shoot for with the other powders ? Is there a possibility Retumbo might get a little more velocity and not loose any accuracy.
I am going to try some Remington Brass instead of the Weatherby stuff.
Any tips ?
USMC Scout Sniper 88-94
Instructor 1st. Mar. Div. SS school 91-94