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one of us |
anybody got some help here. My thoughts were 2230 as it works good in my 458. I just got the barreled action back and was going to throw it into a plastic stock and try a few rounds hehe! I have Barnes, and woodleigh 500grn bullets available and dies from CH4D. | ||
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One of Us |
I like 84.0 grains IMR4064 behind a 500 grain GS Custom FN solid or North Fork cup nose solid. I have gone up to 86.0 grains without pressure problems, but be sure to start low and work up because your gun may not like that load. Also, I have noticed higher pressures with Barnes bullets to be certain to start at the minimum with them. 470 capstick with GS Custom FN solids: | |||
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one of us |
You can work up to this load with either of your bullets and see how they do in your rifle. My barrel is 26" and 10" twist (McGowen on a WinM70 Classic), no pressure signs and excellent uniformity over the chronograph: For 3 shots at 50 yards: North Fork Cup Point: 0.6 MOA Barnes XLC: 2.0 MOA The Cup Point and FP solid from North Fork are now .475" instead of .474" and have a few more of those skinny little driving bands than did the early ones I had. The new ones should be even better in more rifles. I would have to back off this load a few grains and work up again in my rifle. | |||
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One of Us |
Dr. RIP, please stop embarassing that "other" bullet maker by posting photos of less than flattering groups. | |||
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one of us |
Sir, Doin' good ain't got no end. | |||
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one of us |
Hey RIP thanks for the info. You mention on your past that the XLC is to long for a model 70 box, but I loaded some dummys with the TSX to the last grove and they seem to fit. Are you using this OAL to avoid over pressure, or are these bullets that different? | |||
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one of us |
They are different. The old XLC had one cannelure, in the wrong place for a 470 Capstick with a 3.6" box, making the nose portion of the bullet and COL for the loaded cartridge too long, when crimped in the cannelure. Barnes TSX must have a shorter nose section and 4 or 5 cannelures on the TSX now, right? And in all fairness, the TSX should be a better bullet, more accurate than the XLC, if your barrel is tight enough to shoot them well. | |||
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one of us |
That splains it, darn bullet MFGs putting the grove in the wrong place. One thing that I noticed the the difference in "bullet in the case" between the woodleigh SP and the barnes bullets. That would make me think that the same charge with the different bullets would have VERY different pressures, so I guess I have a jumping off point on the barnes ones. | |||
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one of us |
Yep. I forgot I had a couple of boxes of TSX's and Old XLC's in my bullet closet. Old XLC: 1.568" long with 0.840" of nose ahead of the cannelure New TSX: 1.549" long with a much blunter nose portion only about 0.710" long. So, they shortened the nose, lower ogive number and lesser BC, despite same SD and weight for the 500 grainer TSX. With my best steel caliper: .475/500-gr XLC is only a hair under .475, looks like about .4747" diameter estimated: "475 Nitro 475 dia" spelled out on the box. #47550. The TSX proclaims on the box that it is a .474" diameter: "470 Nitro .474 dia" #47452. It is .4736" diameter by my caliper interpolation. The new TSX is shorter, even with 5 cannelures to do the banding, becuse the nose portion is blunter and shorter. The new TSX is skinnier. It will keyhole in some rifles, hopefully not yours. Happiness is GSC and North Fork. Woodleighs will do if a punkin' ball is sufficient: 470 NE velocities. The TSX is going to be longer inside the case if you seat it as deep as you can and still crimp. Start with about 78 grains of either Dan's IMR-4064 or my H4895 Extreme and work up. The Woodleigh would be the happiest of your two bullets to start with to get a feel for your gun's potential. | |||
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one of us |
Now you went and done it, I just took out a bullet and my caliper. It looks like at the muzzel end of my Pacnor barrel the groove dia is just under .475, like .4745 and the bullets mic to the same diameter so hopfully I will get lucky | |||
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