MacTech
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I've been working up some loads for my H&R Buffalo Classic Carbine .45 Colt single shot rifle, the rifle is (supposedly) capable of handling the Ruger/TC only "Nuclear" loads, I don't plan to go to that extreme, but I do want a tad more "zing" than the standard .45 Colt loads....
The BCC has a 20" barrel, and is based on the SB2 receiver, which is capable of handling cartridges up to the .454 Casull, .460, and .500, some BCC owners have even reamed out the chamber on their rifles to .454 Casull or .460, the gun is rather stoutly constructed
I had previously shot some of the "Max" loads on the Alliant website, 9.5 grains of Unique under a 200Gn LSWC, the gun shot well with those loads, but a hair low at 50 yards, even with the sight elevator all the way to the bottom
I decided to take a little risk, and bump up the charge to an even 10 grains, that's .5 grains over the Alliant published maximum....
According to Handloads dot com, I can load a "+P" pressure level load using 13 grains of Unique, yeilding a pressure of 29,000 CUP and a velocity of 1,349 FPS
It generally looks like every full grain of Unique yields about 100 FPS more or less, so these loads should be hovering around 1,000 FPS-ish, not sure on the pressure though
How sensitive to overcharging is Unique, I've read somewhere that heavy loads of Unique can get somewhat "spiky" and unpredictable
I don't want a load that's going to beat the gun apart, blow up on me, or accelerate the wear and tear on the gun, but I do want a little more punch than the conservative "factory" loads are giving me
So, are these loads within the safe range for Ruger Only type loads, or am I better off dumping the charges and dropping back to the "max" load of 9.5Gr as specified on the Alliant website?
The BCC has a 20" barrel, and is based on the SB2 receiver, which is capable of handling cartridges up to the .454 Casull, .460, and .500, some BCC owners have even reamed out the chamber on their rifles to .454 Casull or .460, the gun is rather stoutly constructed
I had previously shot some of the "Max" loads on the Alliant website, 9.5 grains of Unique under a 200Gn LSWC, the gun shot well with those loads, but a hair low at 50 yards, even with the sight elevator all the way to the bottom
I decided to take a little risk, and bump up the charge to an even 10 grains, that's .5 grains over the Alliant published maximum....
According to Handloads dot com, I can load a "+P" pressure level load using 13 grains of Unique, yeilding a pressure of 29,000 CUP and a velocity of 1,349 FPS
It generally looks like every full grain of Unique yields about 100 FPS more or less, so these loads should be hovering around 1,000 FPS-ish, not sure on the pressure though
How sensitive to overcharging is Unique, I've read somewhere that heavy loads of Unique can get somewhat "spiky" and unpredictable
I don't want a load that's going to beat the gun apart, blow up on me, or accelerate the wear and tear on the gun, but I do want a little more punch than the conservative "factory" loads are giving me
So, are these loads within the safe range for Ruger Only type loads, or am I better off dumping the charges and dropping back to the "max" load of 9.5Gr as specified on the Alliant website?