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barrel twist

ctrulsonctrulson Member Posts: 12 ✭✭
edited July 2002 in Ask the Experts
Picked up a single shot Kennedy custom High Wall in 25-06 cal with a 1"dia crowned 26"L barrel with a 1:12 TWIST. What weight bullet will give me .500 moa at 200yds?--300yds?
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Comments

  • ctrulsonctrulson Member Posts: 12 ✭✭
    edited November -1
    i have a 223 rifle (semi-auto) with a barrel twist of 1-7 twist. What bullet weight is the "best" for it? Looking to reload for it it will only be for target shooting.
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  • ctrulsonctrulson Member Posts: 12 ✭✭
    edited November -1
    how could one figure out the barrel twist on a rifle. i cant count the twist by looking down the barrel with naked eye. i suppose it could be easier with a boroscope.
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  • ctrulsonctrulson Member Posts: 12 ✭✭
    edited November -1
    HEading out the range today to test out my M4gery, barrel twist is 1/9, it is also 16 inches. what grain bullet should be optimal for accuracy. I was thinking 62-68 graing. COuld i use 62-68 grain od is that to heavy? And also, i have found an abundance of 55 grain, caould i use that or is it too light?
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  • ctrulsonctrulson Member Posts: 12 ✭✭
    edited November -1
    When refering to the barrels twist, which is better for target shooting a barrel with 1/16 or 1/14 twist. I want the closest pattern possible.also can anyone give me any advice on some good bull barrels.
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  • ctrulsonctrulson Member Posts: 12 ✭✭
    edited November -1
    I have a Savage 10FP .308 with a 24 inch barrel,excellent rifle shoots 3/4 inch groups at 200 yards. But after the barrel warms up during a match the cross hairs start to turn to the left. At first I thought it was the scope but after changing scopes three times I now believe it is the rifle.
    Has anyone else had this problem and if so how can I correct it?
    Thanks for helping.
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  • MAD DAWGMAD DAWG Member Posts: 45 ✭✭
    edited November -1
    Sorry, you just haven't given enough information. The optimum twist will vary with bullet diameter and length. The bullet diameter and length will be determined by the application. If you know what the gun is to be used for - and have determined what calibre and weight/style of bullet you want to use, give that information and we can help.
    If you only know what you want to use the gun for - but need help selecting calibre, cartridge, bullet (weight/style) That will open a whole other topic - and enough answers (each different) for a board all by itself.
    Best.............!
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  • airborneairborne Member Posts: 1,728 ✭✭✭✭✭
    edited November -1
    Need some further defining. Does it make any difference if the twist is clock wise or counter clock wise?

    B - BreatheR - RelaxA - AimS - SightS - Squeeze
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  • JustCJustC Member Posts: 16,056 ✭✭✭
    edited November -1
    Twist rate determines the weight of the bullet needed. Take a twist rate comparison of any caliber, let's say it's a XX caliber, and when you research, you find that in that caliber, the twist rates available are from (this is hypothetical) 1:7 to 1:12. And the bullet weights available are from 100gr to 165gr. If your barrel is at the heavy twist end of 1:7, then your barrel will prefer the heavier bullets in the 150-156 gr range, if the twist rate is on the lighter side of 1:12, then your barrel will like the lighter bullets in the 100-120gr range. If it is in the middle range of the twist, the barrel will prefer the middle range weighted bullets. This is what I find most of the time, now handloading and increase/reduction of powder can change this, but for 90% of the time, this rule works for me.

    A great rifle with a junk scope,....is junk.
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  • spclarkspclark Member Posts: 408 ✭
    edited November -1
    quote:
    Need some further defining. Does it make any difference if the twist is clock wise or counter clock wise?


    Only if you're shooting South of the Equator (or while standing on your head, tee hee...)
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  • groundhog devastationgroundhog devastation Member Posts: 4,495
    edited November -1
    If you're talking about the 223, 22,250, 220 Swift, most factory rifles would have a 1-14 inch twist. Possibly you might find a 1-12 twist 22 caliber production rifle. The 6mm family will be 1-9 or 1-9.5 or 1-10. Some of the high grade match barrels in 22 or 6mm will be 1-7 or 1-8 twist which will allow the stabilizing of heavier longer bullets as in the "VLD's" (very low drag). If you want a quality barrel you can get a Shilen Match or Hart Match barrel and one of my favorites is a Douglas Air Guage Match Barrel. There are a lot of good barrelmakers out there and if you get one of their match barrels it should shoot IF!!!! the machining and gunsmithing that goes into preparing the action and fitting the barrel and cutting the chamber is done to the highest standards possible. A lot of people can rebarrel a rifle, a lot less can do it with perfection and that costs!! GHD
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  • ctrulsonctrulson Member Posts: 12 ✭✭
    edited November -1
    I'm talking about a 10/22 bull barrel for my son to shoot at targets at gun shoots. I've seen 2 different barrels one with 1/14 and one with 1/16 twist. thanks for all your help so far.
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