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Jeremyks
Guest
Im looking for opinions on various 22 wildcats. Whats everybodies thoughts and opinions on the 22-284, 22-243 (in various flavors), and the 22-47? does one out preform the other?
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f d shuster
Guest
22 Wildcats
Better be real quick on your load development, if you're concerned about even basic accuracy: the barrel(s) will be burned-out in a very short time. What you are describing are radically overbore. You're 22x243 would be very close to a "Cheetah", proven barrel life of 800 rds. Have fun, and very deep pockets.
Better be real quick on your load development, if you're concerned about even basic accuracy: the barrel(s) will be burned-out in a very short time. What you are describing are radically overbore. You're 22x243 would be very close to a "Cheetah", proven barrel life of 800 rds. Have fun, and very deep pockets.
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Jeremyks
Guest
This will not be a bench rifle, it will be a coyote gun so round count is not much of a concern.
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Larry Elliott
Guest
It will unless you plan on calling the coyotes up real close after a few hundred rounds. Even a .243 loaded warmish is all done at 1500-1800 rounds on prairie dogs at 75 yards, and I'd expect a .22/243 to be half that and a .22/284 to be maybe 500 to 600 rounds until the only way you could hit the broadside of a barn would be from the inside and up close.
A .22-250 Ackley will be pretty close to the larger cases in velocity with 50-55 gr bullets, and not far behind with heavier ones. I think I'd go with a .22 BR which uses less powder and produces velocities that are equal or not far behind the .22-250 Rem.
JMHO though, it's your money and the barrel makers will LOVE you....
A .22-250 Ackley will be pretty close to the larger cases in velocity with 50-55 gr bullets, and not far behind with heavier ones. I think I'd go with a .22 BR which uses less powder and produces velocities that are equal or not far behind the .22-250 Rem.
JMHO though, it's your money and the barrel makers will LOVE you....
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marion packett
Guest
223 improved with fast twist using 65-75 gr bullets will kill further than the overbore ones with 50-55 gr. bullets. The 223 improved will equal velosities of 22 BR with less powder and you will get great barrel life!
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Ackman
Guest
No. The 223AI is a terrific cartridge but it doesn't equal the 22BR....just won't. My 223AI load is 50's at 3825, about 150-175fps less than the 22BR.
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Ackman
Guest
I think a 22-250AI is about the practical limit to powder burned vs. velocity with a 22cal. It'll push 50-55gr bullets about as fast as they need to go. Over 4200 with 50's and 4000-4100 with 55's. The load in one of mine is 50's at 4247. Past that case capacity and you start burning increasingly more powder for less and less gain in velocity.
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t.duley
Guest
What causes the barrel to burn out? Is it speed? or is it all of that powder it use's or pressure?
It looks to me if you did not get the barrel to hot they would shoot for ever?
It looks to me if you did not get the barrel to hot they would shoot for ever?
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Larry Elliott
Guest
Amongst other things pouring a lot of hot gases down a relatively small hole causes barrels to wear out. As an example a .308 Win has a long barrel life, several thousand rounds before it falls to the level where a mere mortal would consider the barrel in need of replacement. The .243 Win, which is the same case with a bore ~0.065" smaller has a much shorter barrel life. The smaller the bore in relation to the case capacity, the more likely that a slower burning powder will be needed to achieve optimum results and the slower burning powders will not do that little bore much good.
The .22 Hornet with a very small case capacity has a nearly unlimited barrel life, the .222 Rem which is some larger has a long barrel life (6000+), the .223 which is larger than the .222 by maybe 20% can go through a barrel in 3-5000 rounds, the .22-250 which is another 20-25% larger than the .223 can chew up a barrel in 2000 rounds. For each increase in case capacity there's about a half that increase in muzzle velocity. A Hornet can fire a 40 gr bullet at 2900 fps, a .22-250 with ~2.5 to 3 times the case capacity can move the same bullet at 4100 fps (velocities from Hornady's 5th Ed manual).
Overheating the barrel will certainly shorten its life. Fire 100 rounds through a .22 LR, from a .22 Hornet, and from a .22-250 at one round per minute and check the temperature of the barrel afterward. The .22 LR might be slightly warmer than air temp. The .22 Hornet will be a bit warmer, and the .22-250 barrel may be too warm to hold onto for a long time
The .22 Hornet with a very small case capacity has a nearly unlimited barrel life, the .222 Rem which is some larger has a long barrel life (6000+), the .223 which is larger than the .222 by maybe 20% can go through a barrel in 3-5000 rounds, the .22-250 which is another 20-25% larger than the .223 can chew up a barrel in 2000 rounds. For each increase in case capacity there's about a half that increase in muzzle velocity. A Hornet can fire a 40 gr bullet at 2900 fps, a .22-250 with ~2.5 to 3 times the case capacity can move the same bullet at 4100 fps (velocities from Hornady's 5th Ed manual).
Overheating the barrel will certainly shorten its life. Fire 100 rounds through a .22 LR, from a .22 Hornet, and from a .22-250 at one round per minute and check the temperature of the barrel afterward. The .22 LR might be slightly warmer than air temp. The .22 Hornet will be a bit warmer, and the .22-250 barrel may be too warm to hold onto for a long time
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tgp
Guest
I have a 22-6mm AI witha 1-14" twist, I fireformed 200 rounds, then worked up a very good load with 50 grain bullets that avg. around 4300f.p.s. depending on the temp. outside( a little lower or a little higher) the gun would group around 1/4" at 100 yards. that was in 1983-84, now the gun will only shoot 1/2" groups, still kill yotes, still gets shot 15-20 rounds per month at whatever. Yep it burns barrels but I figure after 20 years what the hell, I'll break down and buy a new barrel in a few years and it will be chambered for a 22 -6mm AI.( SINCE I OWN THE DIES)
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f d shuster
Guest
barrel "life"
tgp: You are absolutely correct, if only firing even several hundred rounds a year, the barrel will last a long time, and even more if the shooter/owner is not concerned about consistant sub MOA groups. It's a real eye opener when you have a "Hawkeye" borescope, and are able to watch, step-by-step as the barrel is destroyed. I gotta laugh, when someone makes an off-the-wall comment like, " my ( you fill in the blanks ) will last for 15 to 20,000 rounds". They have no idea what they are talking about.
tgp: You are absolutely correct, if only firing even several hundred rounds a year, the barrel will last a long time, and even more if the shooter/owner is not concerned about consistant sub MOA groups. It's a real eye opener when you have a "Hawkeye" borescope, and are able to watch, step-by-step as the barrel is destroyed. I gotta laugh, when someone makes an off-the-wall comment like, " my ( you fill in the blanks ) will last for 15 to 20,000 rounds". They have no idea what they are talking about.
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Ackleyredmist
Guest
i'm also putting together an overbore 22. its a tossup between a 22-243ai and a 22-284. 28" broughton 5c 8 twist. i plan on throating it for 80gr berger vld's. you guys have any suggestions? barrel life really doesn't matter
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marion packett
Guest
If you could push a 55 gr blitz king (bc of .271) at 4200, 10mph wind deflection and energy at 500 yds would be 22.5 inches and 656 foot lbs. Now load a 223 Inproved at a modest 3000fps with 75 amax (bc .435) wind deflection deflection will be 19.6 inches and 674 foot lbs.
To the thread respondent regarding 22br there is no load data suggesting velosities faster than 223 improved, with all due respect!
To the thread respondent regarding 22br there is no load data suggesting velosities faster than 223 improved, with all due respect!
That is correct. Same can be said for the 6BR, 6X47L and the ubiquitous PPC line of cartridges. These rounds AIN'T ABOUT loading manuals.......
Now what they'll actually safely DO is stuff that leaves the manuals in the dust.
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vicvanb
Guest
Don't Bother...
It's always fun to fool around with something new but after 40+ years of fooling I've settled on the 220 Swift as burning about all the powder I want to burn in a 22 centerfire. Unless you load it to the max and shoot rapid fire barrel life should not be a problem for use as a coyote gun. If you shoot more than 100 rounds per year at coyotes you are one busy honcho--or you hunt in Texas.
It's always fun to fool around with something new but after 40+ years of fooling I've settled on the 220 Swift as burning about all the powder I want to burn in a 22 centerfire. Unless you load it to the max and shoot rapid fire barrel life should not be a problem for use as a coyote gun. If you shoot more than 100 rounds per year at coyotes you are one busy honcho--or you hunt in Texas.