Ok, the title was intended to be humorous since not too many people will "plink" with a 300 magnum.
Actually, while waiting for my RCBS powder scale to arrive I'm working on a few loads for my rifles. Right now I'm looking at some for my Model 70 300 Winmag. My goal here is to find a load that will not destroy my somewhat arthritic shoulder if I fire 20 rounds through it. When I sighted it in initially I was firing 180 grain factory loads and I had a few scope problems so by the 15th round my shoulder was in agony and I know I had started flinching.
I want to make this rifle my "one size fits (almost) all weapon and one I can fire twenty times at the Birchwood range comfortably. However, I need a round that is powerful enough to take down a caribou at 400 yards. (my personal max range)
I know that using the lighter bullets I have to have a somewhat faster burning powder and I've been looking through a couple of manuals including the new Lyman reloading manual and here's what I've come up with.
Caliber - 300 WinMag
Rifle - Winchester Model 70
Bullet - Remington 150 grain PSP
Powder - IMR 4350 72.0 gr (the grains might change as I test it)
Est vel - 3090 fps
Est Pressure - ????
Any comments, suggestions criticisms are welcome.