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twist rates
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hello all i am new to this forum and had a question about twist rates. my rifle has a 1 in 14 twist rate. what is the lightest and heaviest bullets i can use. it is a .22-250. i am working on some handloads and dont want to waste my money on bullets that wont stablize thanks for any info blake.....
 
Posts: 45 | Location: TENNESSEE | Registered: 23 December 2003Reply With Quote
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Blake,
40-55gr bullets in a 1-14" twist. Anything over or under that usually is a waist of time and money.

Rem. 222
 
Posts: 516 | Location: Ar. | Registered: 03 January 2003Reply With Quote
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thanks for the quick response i was thinking i would have to stay in that range. i have heard that the 50 grain v-max bullets are really accurate i will give them a try...
 
Posts: 45 | Location: TENNESSEE | Registered: 23 December 2003Reply With Quote
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My 22-250 loves a 50 grain V-Max over 35g of IMR 4895. Shoots in the .2-.3 consistently with this load.

Hollywood
 
Posts: 286 | Location: Capitol City TX | Registered: 06 April 2003Reply With Quote
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I never tried the VMax in my 22-250. The best accuracy was with 40gr and 50gr Sierra BlitzKings. I do shoot 58gr. VMaxes in my 6MMBR and am well pleased with them.
If you want, try some 53gr Sierra Match bullets they shot better than any bullet in my 22-250. The only thing they aren't meant to be a hunting bullet.
Good Luck

Rem. 222
 
Posts: 516 | Location: Ar. | Registered: 03 January 2003Reply With Quote
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I have two .222Rems, a .222Rem.Mag. and a .22-250Rem. so I go through a lot of .224 bullets, mostly
Nosler 50 & 55gr. Bal. Tips, and Sierra 52gr HPBT's. My favorite was the Rem 52gr. HPBR which is no longer
in production. Most rifles in this caliber have a 1 in 14" twist so those are the primary bullet weights. I'm
impressed with the Nosler B.T.'s. Actually they are the only non hollow points I use. They are equally as
accurate as the hollow points which came as a surprise. Bergers are also good, but expensive. Some rifles
in these calibers, mainly Savage, will have 1 in 9" twist that allows the shooting of the heavier bullets. Best
wishes.

Cal - Montreal
 
Posts: 1866 | Location: Montreal, Canada | Registered: 01 May 2003Reply With Quote
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IN a 22/250, the heaviest bullets you can stabilize, as was your question, are

63 grain Sierra SMP,

64 grain Winchester SP ( if velocity is about 2800 plus)

70 grain Speer SP ( if velocity is 2700 or up).

These bullets stabilize in a 1 in 14 twist because of their shape. Pointed bullets 68 grains and up will throw themselves all over the place.
 
Posts: 2889 | Location: Southern OREGON | Registered: 27 May 2003Reply With Quote
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You can use the Greenhill Formula to determine optimum twist rate for any bullet and caliber you shoot. Mind you, this is a generic formula, subject to change slightly with velocity, but I've found it to be a good rule of thumb when trying new bullets & loads.
You'll need the length of the bullet to start with.
Divide the length of the bullet by the caliber. Divide this number into 150. Now, multiply this new number by the caliber again.
Example:
Hornady #2250 HPBT, 52 grains, .224 caliber, length 0.703":
0.703 divided by .224 = 3.1383
150 divided by 3.1383 = 47.7965
47.7965 multiplied by .224 = 10.706
So, according to the Greenhill formula, the optimum twist rate to stabilize this bullet should be 1 in 10.7 inches.
This formula has worked pretty well for me, for .308, .243, and .22 Hornet. It's not quite so good for .17 Remington, but the muzzle velocities are 4,000+ fps, so we're a little "out of the envelope" here.
Regards, George.
 
Posts: 58 | Registered: 16 December 2003Reply With Quote
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anyone had any luck with the barnes vlc bullets in .224 just wondering i have had great luck with their other products in my .30 cal.....
 
Posts: 45 | Location: TENNESSEE | Registered: 23 December 2003Reply With Quote
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