22 br

would a 1 in 14" or a 1 in 12" be better for a 22 br? 40 to 55 grains will be used, on groundhogs, coyotes, and informal range time....the distance will be 250 - 500 yards.

 

With those weight bullets go 1 in 12 and you could go a little heavier if needed

 

I have always used 14 twist for bullets up to and including 55 Gr. When pushed fairly hard they are outstanding performers on ground hogs and prairie dogs.

 

The 12 will let you try the 53 Vmax,which is longer than the 55 Vmax,i believe.....


My.22 barrels are all 12,for what thats worth...

 

Why not go with an 8 twist and be able to shoot any bullet you like. Here's a nice group from my .22BR 8 twist shooting a 40 gr. V-max. Just a thought.

Regards, Paul

www.boltfluting.com

 

Like Paul said, go 8 twist and shoot everything. My best 5 shot group measured .110 with 50s.

 

my second favorite cal! i have an 8, 12 and 14 twist and have tried various bullets and found the weight each shoots the best in each. the 14 twist will one hole a 52 gr but really likes a 60 gr berger. the 12 twist is a laser with a 63 or 64 gr bullet. the 8 tw prefers a 77 gr bullet. my 8 tw will spin apart light varmint bullets so it stays with the 77s. if i only had one it would be the 12 twist as it does well with 50-64 and even 65 jlks if you can get them. a 330 yd instant ghog kill is my longest with the 12 tw and 64 berger. an aside...chamber with a tight neck and seat bullet .015-.020 into the lands...i believe this contributes to supreme accuracy.

 

Tdoyka -

Howdy !

If 55s are as heavy as you intend to go, a 1-14 will suffice.

Having said that..... lpreddick told you some real pearls of wisdom.


With regards,
357Mag

 

Strongly suggest 8 twist....

 

Nice topic. I have an 8 & 12 twist and would be interested in seeing what you guys are running in yours. Pros and cons would be interesting.

Thanks

 

I've built a number of 22BR's for myself and others. My suggestion and experience is;
If you're going to shoot 65gr or less bullets - go with the 12 twist
To shoot 75 to 90gr Berger, Sierra, or Hornaday - go with the 8 twist
The 12 twist will give you higher velocity and slightly better accuracy with the lighter bullets. Also You won't have to worry about blowing up the bullets because of excess RPM! I can do a max load on my long barreled 8 twist barrels with a 40 to 50 gr bullet and the bullet disintegrates before reaching target!

 

I've been shooting a 8 twist for a year and just recently got its mate with a 12 twist. Both are Cooper's and chambered with the same no turn reamer. The 12 twist gives about 3% less velocity with the same loads and handles up to 65 grain bullets on par with the 8 twist accuracy wise. Above that, the 8X shines.

I've run more than two dozen different loads with 5 different manufacturers of 50 grain bullets thru the 8X and yet have not experienced of any "blowups" . Max velocities were in the 3650 f/s range and if I do my part, they will group 5 shots into the low .1's at 100 yards. My question is: at what velocity do they come apart in a 8 twist?

Thanks

 

the 1 in 12" is looking better, along with the 50 - 55 grain bullets. since i had the stroke(right side needs alot of help), the t/c encore has led the way. most bolt actions give me real problems(opening and closing). barrel length (mgm barrels) should be 24 - 26"

my 16 1/4" mgm barrel, 20 vartarg and the 223 rem savage model 12(dad is having fun, bolt to heavy)

the 1 in 12" in 22br with 50-55 gr, maybe the right way to go... but i'm still not convinced...

 

re bullets being spun apart: the j-4 jacket and 3600+ mv seem to be it. berger 50gr-64gr came apart every other to every 4th shot. sierra jackets are not j-4s and seem to stay together better. most custom bullets use j-4s and my only experience was with cheeks 63 in my 8 tw...1 out of 4 came apart. a rough bore may cause more to come apart than a custom stainless but it seems that rpms do the damage.

 

have 2 22 brs and they use 32.5 gr of blc-2 with 38 gr varmint granades and 40 gr vmax with a 1-12 twist barrel

 

You're making this into a bigger deal than it is. You're only gonna shoot 50/55 gr bullets, don't be afraid of 14" twist. But if it's really worrying you then get the 12 twist. My 22BR's are 14" twist......50gr. loads are scary accurate and blow the crap out of stuff, I've no desire to use anything heavier. But even the 55BlitzKing? The one that's longest plastic tipped bullet and people say won't work in a 14" twist? I haven't shot it in the 22BR, but have shot it in a .223 from as slow as 3430 to over 3600 with excellent accuracy......through a 14 twist barrel.

 

Man, I wish my 222 Magnum w/14"-t would do that... but the 55 SBKs are all over the place

 

That barrel (Shilen) has always shot everything well.

 

maybe i'll try a 1in12" twist

 

I have a 1-12 twist barrel and with Sierra 50 gr blitz king bullets with 31.1 gr of benchmark powder and a rem 7 1/2 primer it’s one hole into the next .