22-250 savage twist rates and types?

[fieldnstreamer]

I just bought a savage 12fv in 22-250 and it has a 1-12" twist. That limits me to 55 or 60 grainers. If I was to get a 1-8 or a 1-7" so that I could shoot maybe a 70-80 grain on occasion, but I would still want to shoot some light weights. would the fast twist screw up the lighter weights? I was looking at shilens ratchet groove in a 1-8" or standard twist? or maybe a lilja, kreiger...etc any comments?

ps, anyone have any experience converting this gun to a detachable box mag setup?

 

[BoilerUP]

Re: 22-250 savage twist rates and types?

Its easy to convert a 12FV to DBM...you just need to call Jeff @ CDI and he'll get you fixed up. You'll probably want another stock, though...

Jim Briggs @ Northland Shooters Supply (go to SavageShooters forum) has new factory takeoff stainless/fluted 1:9 22-250 varmint barrels and they should shoot the 75gr A-Max, will almost certainly shoot the 75gr Berger VLD, and will definitely shoot 69/77 SMK and 68/75 Hornady HPBT. And the 9 twist should work great for 40-55gr bullets too.

 

[Helmet]

Re: 22-250 savage twist rates and types?

I had one that was a 1-14" twist which I felt was too slow and prevented me from shooting long bullets. I think 1-12" is much better. I was under the impression that the reason the 22-250 usually has a slow twist is because a fast twist combined with it's ability to push a light bullet very fast can cause it to come apart in flight. If you pushed a light bullet fast with a twist like you are considering out of a 22-250 you might run into problems. On the other hand, with a 1-7" you would have just enough twist to fully stabilize the Berger 90 grain VLD. It would also shoot them at speeds that would increase your barrel life.

 

[Helmet]

Re: 22-250 savage twist rates and types?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BoilerUP</div><div class="ubbcode-body">Its easy to convert a 12FV to DBM...you just need to call Jeff @ CDI and he'll get you fixed up. You'll probably want another stock, though...

Jim Briggs @ Northland Shooters Supply (go to SavageShooters forum) has new factory takeoff stainless/fluted 1:9 22-250 varmint barrels and they should shoot the 75gr A-Max, will almost certainly shoot the 75gr Berger VLD, and will definitely shoot 69/77 SMK and 68/75 Hornady HPBT. And the 9 twist should work great for 40-55gr bullets too. </div></div>Jim Briggs also has Criterion 1-9" twist prefit barrels for 22-250. I just put a 7mm08 one on my Savage in my garage and it is terrific. Great value!
I just ran some numbers and the 1-9" twist 22-250 will not stabilize the 75gr Amax and will only stabilize the Berger 75gr VLD during certain favorable conditions. However, it will the 77gr SMK just fine.

 

[BoilerUP]

Re: 22-250 savage twist rates and types?

My 26" 9 twist 12FV 223 barrel stabilizes the 75gr A-Max just fine going 2915fps...an extra 200-300fps won't hurt things. Some 9 twists work and others won't - only one way to find out!

I ordered a 22" 1:7 223AI Criterion from Jim today, planning to shoot the 80gr A-Max @ 2900fps+ but also want to try 90gr Bergers for funzies.

 

[Helmet]

Re: 22-250 savage twist rates and types?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BoilerUP</div><div class="ubbcode-body">My 26" 9 twist 12FV 223 barrel stabilizes the 75gr A-Max just fine going 2915fps...an extra 200-300fps won't hurt things. Some 9 twists work and others won't - only one way to find out!

I ordered a 22" 1:7 223AI Criterion from Jim today, planning to shoot the 80gr A-Max @ 2900fps+ but also want to try 90gr Bergers for funzies. </div></div>That's very true! Unless the OP is shooting in much colder weather than you the extra speed should only help stability. The JBM stability chart is showing that their is a problem though. I wouldn't want the OP to get a barrel under the assumption that it would shoot a specific bullet only to realize that it couldn't. I wouldn't want to cut it close if I was buying a new barrel. I'll get over wasting money on a box of bullets, but the barrel would make me cry

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It says it will stabilize the 68/75 BTHP also(forgot to mention before).

 

[Helmet]

Re: 22-250 savage twist rates and types?

BoilerUP: Congrats on getting a Criterion! Shot mine today for the first time. Just thrilled with it! Is this the first one you've put on?

 

[BoilerUP]

Re: 22-250 savage twist rates and types?

I've had a 260 CBI for over a year...very happy with it.

At 500' ASL with standard atmosphere, I have a 1.01 stability factor with the 75gr A-Max from my 9 twist 223 @ 2915fps...definitely on the ragged edge per conventional wisdom but the groups speak for themselves.

The 75gr Berger VLD is 1.15 under the same conditions.

Elevation, warm temps and velocity are definitely your friend when working in the margin...but yeah, if it were my money and I wasn't satisfied with 77 SMK/75 HPBT then an 8 twist would be the ticket.

 

[Helmet]

Re: 22-250 savage twist rates and types?

Hard to argue with something that's working good

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This was the first time I'd put on a barrel and I found a few helpful things, but it sounds like you already know what you're doing. Did you reuse your old barrel nut or get a new one?

 

[USAF SP]

Re: 22-250 savage twist rates and types?

I have a 1:8.5 twist Brux being put on my 700 action right now. Already have various loads between 69-75 gr worked up. very much looking forward to getting it back and on the range.

 

[fieldnstreamer]

Re: 22-250 savage twist rates and types?

Thanks for all the input guys, you've been helpful. I wont be making any decisions for a couple more weeks. Ive got my RRA lar 8 a-4 varmint in the shop here in town getting some body work done and filling out the suppressor paperwork as we speak. once I get that baby complete I'll have all the money I want in that gun and will be ready for another project. BTW I was looking at some of Karl Kampfelds work...I like what I see and I may get him to do a little work on my new Savage...Anyone had him do any work?

 

[Helmet]

Re: 22-250 savage twist rates and types?

Sorry, I'm too poor to know about that stuff. If you have any trouble with your AccuTrigger being finicky or you want to put on a prefit barrel let me know.

 

[Maelstrom]

Re: 22-250 savage twist rates and types?

I can't speak on the barrel twist but I have a Rem 700 VS in a Manners T4-A with mini chassis. It works great with both Accurate ans AICS 5 round mags. I have 1 10 round AICS mag that I can't load more than 7 or 8 rounds in without a feeding issue. When I posted asking about it I was told that due to the angle of the case I won't be abole to load more than 8 rounds without modifying the follower which I don't want to due. So I stick with the 5 round mags.

 

[Senna11]

Re: 22-250 savage twist rates and types?

The cheapest way to get a 9 twist .22-250 Savage is to rechamber a takeoff .223 Rem Savage barrel.