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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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Post by smokelessk on Jan 25, 2024 11:11:58 GMT -5
Finally making some progress toward putting this little gun in service. The goal is a rifle for the kids to get comfortable with to deer hunt. So, I was able to purchase a second stock (thanks to speedrackin). Shortened the length of pull by 1.25 inches, installed the cheek rest and I'm preparing to bed the forend. Never attempted a bedding job on a break action before. Some oak plywood blocks are going to be epoxied in place for filler material before the actual bedding happens. My initial plan of adding weight to the forend has changed. Weight will be added, but at the muzzle. The original brake has been removed, and the threads are now cut 11/16-24. Hopefully the new "muzzle device" will be cleared in time for hunting prep this year. As it sits the weight is 8 pounds 11 ounces, total length of 32.5 inches. The suppressor will add another pound and about 7 inches.
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Post by gd357 on Jan 25, 2024 13:48:22 GMT -5
Have you had any luck with loads for this? Looks like its coming along well! gd
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Post by smokelessk on Jan 25, 2024 15:43:37 GMT -5
Have you had any luck with loads for this? Looks like its coming along well! gd I have not even seated any bullets for it yet. I have dies and all the components ready to go. Kinda hoping the ATF releases my accessory before I head down the road of burning powder. Since the intention is to be shooting is suppressed.
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Post by gd357 on Jan 27, 2024 0:31:29 GMT -5
Based on experience with the 450 (bolt gun) if you're looking for lighter recoil loads, start with the 200 gr. ftx and Lil Gun powder. I know there's a bunch of other loads, but for recoil and DRT results on deer, that's my recommendation. Thor's Hammer on whitetails.
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Post by smokelessk on Feb 21, 2024 6:13:44 GMT -5
Well, last Friday I received the email from the ATF approving the suppressor. WAY sooner than anticipated. So, I have not completed the bedding of the forend or started putting loads together. I did order some 395 grain Hornady Sub-x FTX bullets. Going to tinker with those a bit to see what the gun does with subsonic loads in a heavy for caliber bullet. Also have a box of the 250 grain FTX for experimenting. I'm hoping to find a nice subsonic load with either of those bullets that would be a good kid friendly deer load. The 395 grain bullet may not be a viable option, but it's designed for low velocity terminal performance so I wanted to check it out.
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Post by smokelessk on Feb 24, 2024 16:14:18 GMT -5
Loaded up some subsonic ammo today. No accuracy testing yet, as I have not completed the bedding on the forend. 21 grains of Accurate 5744 with the Sub-x bullets and a WLRM primer is running just under 1,000 fps. Recoil is very light, I'd say less than a 410 shotgun. Hearing protection is not necessary at all. This load is pretty well equal to a hot 44 magnum hunting load in terms of kinetic energy. And the Sub-x is designed for expansion at low velocity. More testing on those grounds when fur is back in season.
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Post by dennis on Feb 24, 2024 19:41:09 GMT -5
Slowing down the 460 may be the answer to accuracy with light bullets in a 16 twist barrel. The 450bm is a 24twist.
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Post by smokelessk on Feb 24, 2024 20:07:25 GMT -5
Slowing down the 460 may be the answer to accuracy with light bullets in a 16 twist barrel. The 450bm is a 24twist. I'm hoping you're right Dennis. The Marine Tex is curing right now on the forend. Never bedded a single shot before, but I don't see how making the forend more rigid and a perfect fit to the barrel is going to hurt anything.
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Post by smokelessk on Feb 25, 2024 8:02:34 GMT -5
Part of my "experimenting" in loading subsonic loads created this little dilemma. 12 grains of powder was just enough to get the bullet almost exactly halfway down the bore. Gotta admit, can't say I've had that problem before. But, it came out a lot easier than I expected expected. Lesson learned, don't be lazy, get the chronograph out. I should have done that from the beginning.
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Post by gd357 on Feb 25, 2024 13:42:09 GMT -5
At least it came out without any issues. Hopefully the chronograph will get you in the right neighborhood quickly. And bullet weight should be impressive on target.
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Post by smokelessk on Feb 25, 2024 15:16:50 GMT -5
At least it came out without any issues. Hopefully the chronograph will get you in the right neighborhood quickly. And bullet weight should be impressive on target. Right! I'm hoping terminal performance is adequate as well. Actually the experience I've had with smooth sizing and just SML in general was beneficial for removing the bullet. Really it just tapped right out, I was concerned it would be much more difficult.
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