22-250AI or 22-243 that's my question

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by bruton, Mar 1, 2013.

  1. bruton

    bruton Well-Known Member

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    I'm receiving a new barrel, it's 26 " 1-12 twist, I want something different ! I'm using it for coyotes to about 500 yes max, I want fast and accurate , mb even a 22-243 AI , what bullets will this stabilize in a 22-243? Thanks Jeff
     
  2. tomt

    tomt Well-Known Member

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    At the bottom of the page is a "stability" calculator. Hope this helps, Tom

    JBM - Calculations
     

  3. Trickymissfit

    Trickymissfit Well-Known Member

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    before I'd do a 22/.243 or the 22-250AI, I'd take a seriously look look at the 22 Jaybird!! Better case design means better barrel life and accuracey as well. The Jaybird case is pretty much an improved 22-250 based off a .243 case. The over all length is 2.00" (this is great when factoring in fire form case shrinkage). The shoulder deminsion is 1.550" and the neck length is .30" with a 35 degree shoulder angle. Hogdon lists loading data in their #26 manual. The 22/.243's are well known barrel burners as well as some others based off that case with a very short neck length.

    The twelve twist barrel kinda limits you to 60 grain bullets and lighter in weight, and this round is perfect for you. Plus knowing it's a Kenny Jarrett design tells me it's a good one. I'm going to rechamber a Savage barrel in this caliber, and may even do one in a 6mm version when my 6/250AI barrel finally goes south
    gary
     
  4. shortgrass

    shortgrass Well-Known Member

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    Any of the .22 centerfires you're considering will be "barrel burners". One, really no better than the other.
     
  5. north of 53

    north of 53 Well-Known Member

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    If you only have a 1:12 barrel and you are only going out to 500 yards I would just stay with a 223 and have some barrel life. If you want to run bigger case size for a 22 get at least a 1:9 or better yet a 1:8. A good 223 should own the ground out 500 yards. The extra rounds you can shoot to get trigger time and practice will make more of a difference than the gun will.
     
  6. Trickymissfit

    Trickymissfit Well-Known Member

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    I shoot a .223 Remington on coyotes a lot of the time around here. We get some pretty good sized dogs, and 35lb. ones are getting to be rather common anymore. Most of my hits have been under 300 yards, but have taken a couple dogs close to 400 yards. To me anyway, the .223 is starting to get marginal after 400 yards for that clean one hit kill. At 300 yards it drops them like a rock. Looking at the ballistics chart, and using the data from my Remington, I see 280 ft.lb. of energy at 500 yards (3200 fps .255B/C), and about 390 ft.lb. at 400 yards. But 548ft.lb. at 300 yards. Now had we been using the 22 Jaybird at 500 yards with the same 55 grain bullet will give you 471 ft.lb. of energy (3900fps), and 850 ft.lb at 300 yards.

    I like the case design of the Jaybird, but would like it a lot better in 6mm, and a 1:8 twist barrel
    gary
     
  7. CPGfan

    CPGfan Well-Known Member

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    22x47 Lapua would be my choice
     
  8. Varmint Hunter

    Varmint Hunter Well-Known Member

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    The only way to see a large bore .224 (22-243, etc) shine is to use a fast twist barrel. My 8" twist 22-243 would shoot exceptional groups with heavy A-Max bullets. Other guys have had good luck with the 80 SMK bullet.

    I used the 22-243 to achieve DRT kills on fat PA groundhogs out to about 1,000 yds. Longer shots were probably possible but my hunting area just didn't provide many really long range shooting possibilities. Homes have popped up everywhere over the last 20 years.
     
  9. bruton

    bruton Well-Known Member

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    Thanks guys , probably just build a 22-250 or maybe a 22-250ai, and wait on the longrange 22-243, 22-6mm til I get another barrel
     
  10. Trickymissfit

    Trickymissfit Well-Known Member

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    I honestly think that before even considering a 22-243 or the 22/6mm, I would look at something like the Jaybird or a 6x47 Lapua necked down to .223 in a 1:8 twist barrel. The neck's way too short on the .243 case for what you get, and the 57mm case is way overbore creating other issues. Even a 22-250AI is slightly overbore, but with a fast twist barrel should be just fine. The Jaybird is similar to the 22-243, but with a far better neck and shoulder design. Plus there's plenty of load development already done. With a .300" neck length and 80 grain bullets it should be fantastic.
    gary
     
  11. Varmint Hunter

    Varmint Hunter Well-Known Member

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    I have had no experience with the 6x47 or the Jaybird but the 22-243AI has always performed exceptional for me. No problems with neck length or shoulder angle with the 22-243 or the AI variant in my experience.

    [​IMG][​IMG]
     
  12. north of 53

    north of 53 Well-Known Member

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    Well if you have a thing for a "Jaybird" go for, it but the 223 lets you spend more time shooting and less time fiddling.
    I don't think your dogs are any bigger than the ones up here in Canada, 500 and under is short range and a 233 works just fine. If you want to go out farther then get a fast twist and shoot something heavier.
     
  13. Trickymissfit

    Trickymissfit Well-Known Member

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    well you're a lot better with holdover than most folks are. With a 200 yard zero, your looking at 48" of bullet drop in a typical .223 load and a 55 grain bullet. A 300 yard zero will still have three feet of drop. That's a lot of clicks to keep track of for that 500 yard shot
    gary
     
  14. north of 53

    north of 53 Well-Known Member

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    Well first of you are probably right I am better than most at hold over but I don't need to be for this. Most of the time I don't get real technical on this stuff not because I can't but because I just like to spend more time out shooting. Having said that lets get technical for a moment here then.

    If I go to the Hodgdon web sit they list a few loads for 55 grain bullet at over 3300 ft/sec. So I will use 3300 per sec (this can be worked out at 3200 as well) and then bring up Sierra software and plug in a 55 sierra blitz . Lets say we have a 4" kill zone on a Coyote and plug that in to the software it gives us a zero of 225 yards with a maximum point blank range of over 250 yards. Now for hold over why not use mill dots , that's what people do if they want to shoot out there a little. So at 500 yards that is 2.5 dots, hold the coyote between the 2nd and third dot and just shoot him its not that hard and you don't have to guess at it. You do need a good range finder and if you shoot a lot of different guns a drop chart on the stock helps just so you don't forget. If it is real windy you will have a lot more of a challenge but with a little trigger time in the wind and a good wind meter it is still very doable. I am not sure why people want to make shooting out to 500 yards that hard.

    If you don't have mill dots then take a duplex variable power scope and play around a bit until you know for sure at what power the post is your point of impact at 500 yards do the same for 400 yards and stop guessing at hold overs and start making the shots.