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Post by damnyankee on Nov 27, 2021 11:20:08 GMT -5
I have read that the .460 beats up scopes and is a bear to handle in an Encore pistol. My Encore pistol is chambered in 7-08 and with some loads you really feel the thump in your hands. It's a 15 15/16 Bulberry barrel full bull contour and it doesn't tear up scopes or anything. my question is, Why is the .460 so hard to harness? Encores have been chambered in waaaaaay stouter cartridges than the .460. Askin out of ignorance as I have never own one!
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Post by dennis on Nov 27, 2021 15:27:00 GMT -5
I think one of the issues with the 460 rifle barrels may be the Katahdin barrel is 1 in 15 twist in a 20 in. barrel. The SW 460 pistols were a progressive twist and a 200gr bullet had a mv of 2200fps. Add a longer barrel and the speed and pressure is greatly increased. I have shot both rifle and pistol and with an older friends rifle ended up loading 40-42gr H4198 with a 200ftx. I did not chrono the load but am sure it was much slower than 48gr w296 with the same bullet but much more pleasant to shoot esp. for a 78yr. old man. Also had scope issue with his rifle ended up bedding a pic rail to mount the scope. Also load data for the 460 pistol is pretty large doses of pistol powder.
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Post by deadeer on Nov 27, 2021 22:06:34 GMT -5
I agree. The huge dose of fast burning pistol powder is just way too much.
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Post by smokelessk on Nov 28, 2021 2:32:10 GMT -5
I agree. The huge dose of fast burning pistol powder is just way too much. What is the better option then? Since published 460 rifle data doesn't seem readily available. |
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Post by dennis on Nov 28, 2021 8:06:56 GMT -5
I agree. The huge dose of fast burning pistol powder is just way too much. What is the better option then? Since published 460 rifle data doesn't seem readily available. Maybe use 450 bushmaster data? as it is a rifle cartridge. Should be similar chamber pressure being they are both being shot from rifle barrels. |
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Post by deadeer on Nov 28, 2021 8:35:41 GMT -5
They are similar, just not as much charge weight in 450, and again small rifle primer. I have also used AA1680, CFE Black, and H4198. Elkman has some good posts on the 450 and powder amounts if you dig them up, but they are in a Ruger American.
All this talk could be just a bunch of hot air too. Lol. You may have no problems and hit the nail on the head right away. So please dont take anything I say as the gospel. Not try to be a drag on your project and truly hope somebody figures it out. Good luck.
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Post by dennis on Nov 29, 2021 10:10:44 GMT -5
I believe a major issue with the 460 is, will the bullet of choice stand up to the speed produced. Either a solid or bonded will, other jacketed bullets? xtp mags will but they do leave big exit holes @ 2500+mv. Not the same but I have been shooting 54gr 4227 with 240mag xtp and 245 interlock in my break action Scout. I know that much powder will not fit in a 460 case and would be up there in pressure but is one of the slower powders listed for that caliber. I believe slowing it down a bit will yield better accuracy, jmo. I would opt for 200-250yds max for that rifle caliber.
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Post by smokelessk on Nov 29, 2021 13:30:06 GMT -5
I believe a major issue with the 460 is, will the bullet of choice stand up to the speed produced. Either a solid or bonded will, other jacketed bullets? xtp mags will but they do leave big exit holes @ 2500+mv. Not the same but I have been shooting 54gr 4227 with 240mag xtp and 245 interlock in my break action Scout. I know that much powder will not fit in a 460 case and would be up there in pressure but is one of the slower powders listed for that caliber. I believe slowing it down a bit will yield better accuracy, jmo. I would opt for 200-250yds max for that rifle caliber. I wonder if the rotational speed is the detrimental factor more than muzzle velocity? The 1-15" twist is notably quicker than most any 45 caliber barrel we are using for a muzzleloader. And the muzzle velocity of the 460, in a rifle, certainly can not be faster than some of the loads we shoot in the muzzleloaders. |
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Post by elkman1310 on Nov 29, 2021 14:30:57 GMT -5
The 460 and the 45 raptor are basically the same case capacity. The 460 has a rim the 45 raptor doesn't which makes a lot easier for a bolt action build. I thought about build a 45 Raptor but with the goofy laws in some states it's not legal. 2500fps should not be a real problem with a 1-15 twist it would work better with a slower twist but it should work.
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