1 in 16 twist

[stimpylu32]

Does anyone know if the 40 or 45 gr. bullets like the V-Max will stablize in a 1-16 twist or is this just too much to hope for .

stimpy

[roper]

If your talking about 22 cal bullets the older 22 Hornets/218 Bee  came with a 1/16 twist barrel.  I think Ruger uses a 1/14 twist for the 22 Hornet don't know about Cooper etc.

[stimpylu32]

What i am thinking is to re-chamber a 22 mag H&R barrel to a 224 R-C Max , i know some of the older 22-250s came with a 1-14 or a 1-15 twist and shot the smaller weight bullet ok .

I'm hopeing that it will it work in a 1-16 .

[roper]

I know nothing about rimfire rifle other than buying factory ammo for my 22 rifles.  Best to get on www.benchrest.com they have a rimfire forum and you can ask those guys.  Well good luck

[Nobade]

A 45 grain flatbase will work, never tried a boattail. It might be kinda marginal. Have you measured the barrel to make sure it's really a 1:16? My NEF Hornet barrel is a 1:12 even though it's advertised as 1:14.

[trotterlg]

At 4,200fps a 55gr HP will be stable to at least 100 yards out of a 1 in 17 twist barel.   I know this because I had built a slow twist 22-250 with a 1 in 17 barrel.  It really liked the 40gr Barnes VLC's (now out of production) and would launch them at better than 4,500fps.  I have a bullet stability calculator here if you want to play with it.  It does require you have Microsoft xsel (the spread sheet program) on your computer.  Slow twist barrels are really fun to play with, best accuracy is gotten with a bullet that is just barely stable, so some amazing results can be obtained if you do it just right.  Larry

http://www.22-250.com/bullet/bulletstabilitycalc.xls

[roper]

At 4,200fps a 55gr HP will be stable to at least 100 yards out of a 1 in 17 twist barel.   I know this because I had built a slow twist 22-250 with a 1 in 17 barrel.  It really liked the 40gr Barnes VLC's (now out of production) and would launch them at better than 4,500fps.  I have a bullet stability calculator here if you want to play with it.  It does require you have Microsoft xsel (the spread sheet program) on your computer.  Slow twist barrels are really fun to play with, best accuracy is gotten with a bullet that is just barely stable, so some amazing results can be obtained if you do it just right.  Larry

http://www.22-250.com/bullet/bulletstabilitycalc.xls
 
Stimpylu32 was talking about a rimfire barrrel (22mag) which has a different bore dia(.222) than a centerfire 22 cal (.224), thats the reason I suggested he go over to the rimfire forum. 

[stimpylu32]

Roper

I have slugged the barrel and it is a .224 , this one of the reasons that i picked this barrel for the project .

H&R has a habbit of oversizing their bores and this time it works in my favor . 

[roper]

Roper

I have slugged the barrel and it is a .224 , this one of the reasons that i picked this barrel for the project .

H&R has a habbit of oversizing their bores and this time it works in my favor . 

The rimfire barrels are .222 groove dia and .217 bore dia , 22 CF is .224 groove and bore dia .218 and a tight rimfire is .222 groove and .215 bore dia.  If as you say they oversize their bores I'd be aliitle concerned on the tolerance from breech to muzzle on the groove dia.  Depending on who's barrel they like to keep the difference around .0002 some manufactors may go to .0005.  Well good luck. 

[trotterlg]

Just not true, a 22 mag Handi barrel is .224 groove, I have two inches of one sitting on my desk and have measured it several times, even pushed a barnes varmintathor .224 bullet through it just to make sure.  Larry

[roper]

Just not true, a 22 mag Handi barrel is .224 groove, I have two inches of one sitting on my desk and have measured it several times, even pushed a barnes varmintathor .224 bullet through it just to make sure.  Larry

    I wasn't trying to get into a contest with you over the barrel but you can pull up  Lilja barrel spec and others on 22 rimfire barrels and  you will see they are different than a cenfire 22 cal in groove dia and bore dia.   

[trotterlg]

Just don't believe every thing you read on the internet.  Larry

[quickdtoo]

FWIW, I just slugged my 22mag Sportster bore, it's .224" also!! It's a moot point what any source on the net states as bore spec for the 22mag since Stimpylu32 slugged his bore at .224", so that's what to base any speculation on, not what some web site states as what it should be.

Tim

[308Win]

Your talking a round with the same ballistics as the 222 Remington,a one in 14" twist do just fine.