Barrel twist code?

[joeb33050]

There are a lot of letters/numbers stamped on Savage etc barrels; there must be a twist code. Anyone know what it is?
Thanks;
joe b.

[Zero333]

There is no twist code. Unless it's a aftermarket barrel blank or pre-fit, which would have the twist marked on the breach face of the barrel.
No twist code for factory barrels.

Cleaning rod
Bristle brush of appropriate caliber
Ruler
Marker pen

Measure how many inches it takes for the rod to spin one rev when running the bristle brush through the bore.
Simple !

Otherwise just let us know what rifle you have and what cartridge the barrel is chambered for. There is a good chance one of us knows the factory twist even on a old Savage rifle.

[joeb33050]

There is no twist code. Unless it's a aftermarket barrel blank or pre-fit, which would have the twist marked on the breach face of the barrel.
No twist code for factory barrels.

Cleaning rod
Bristle brush of appropriate caliber
Ruler
Marker pen

Measure how many inches it takes for the rod to spin one rev when running the bristle brush through the bore.
Simple !

Otherwise just let us know what rifle you have and what cartridge the barrel is chambered for. There is a good chance one of us knows the factory twist even on a old Savage rifle.

Is it that you KNOW that there is no twist code; or that YOU don't know the twist code. The difference is important to me.

[olddav]

Ther are no twist codes on factory Savage barrels' and I will stacke my tattered reputation on it.

[RC20]

While I am not a code expert, my experience on other guns is that is exactly right.

On the other hand, you can go by common twist per caliber to start and use the rod method to confirm.

You won't find a Savage 30-06 in anything other than 1-10, 270, ditto etc.

Some mfgs will have a variation for 308, aka 1-12 twist (Winchester I believe, but Savage is 1-10.

[dfrosch]

Here's a little bit of an explanation about all the stamping:
http://www.savageshooters.com/archiv...p/t-11819.html

It looks like there is a code for the chambering, but I didn't see anything that refers to the twist rate.

Seems like I have seen the twist rate roll marked right next to the caliber on a couple .22 caliber barrels. But they have offered several twist rates on them(7, 9 and 12) concurrently.

BTW, I have a 270 WSM factory varmint barrel that was never roll marked. The guy I bought it from said it came from Numrich as a surplus barrel that had not been installed on an action. The only stampings are DD in a circle and D3(no circle). I forget which, but only one of these stamps was on the sporter 270 WSM barrel that it replaced. That confirms that there is chambering stamp code. Both barrels are 10 twist. So, since no other stamping was duplicated, I gotta agree with the other guys... no twist code.

But you can always call Savage and ask.

[sharpshooter]

It's a good thing you guys didn't bet real money on it.......

There most certainly IS a twist code. Unless is it a twist other than standard for the caliber, it won't be marked. If more than one twist is available for the same caliber, it will be on the caliber code. For example: 6mm's....
.243 Win, 1-9.25", caliber code "U".
6 BR Norma, 1-8", caliber code "JJ" 8
6 BR Norma, 1-12", caliber code "JJ"12

.224's
.223 Rem, 1-9", caliber code "M"
.223 Rem, 1-7", caliber code "M"7
.22-250, 1-12", caliber code "K"
.22-250 , 1-9", caliber code "K"9

Now you can quit speculating...you've been skooled.

[joeb33050]

It's a good thing you guys didn't bet real money on it.......

There most certainly IS a twist code. Unless is it a twist other than standard for the caliber, it won't be marked. If more than one twist is available for the same caliber, it will be on the caliber code. For example: 6mm's....
.243 Win, 1-9.25", caliber code "U".
6 BR Norma, 1-8", caliber code "JJ" 8
6 BR Norma, 1-12", caliber code "JJ"12

.224's
.223 Rem, 1-9", caliber code "M"
.223 Rem, 1-7", caliber code "M"7
.22-250, 1-12", caliber code "K"
.22-250 , 1-9", caliber code "K"9

Now you can quit speculating...you've been skooled.

I figured there had to be a twist code because the model & caliber marking isn't done until the barrel is fitted to or put on the action.
Thanks;
joe b.

[ninner]

Very informative post,
I love when people are so confident in their answer. In my line of work the most dangerous people I run into are the ones that "Don't know what they don't know"
rant off. Just food for thought.

[olddav]

Ther are no twist codes on factory Savage barrels' and I will stacke my tattered reputation on it.

Just a little more tattered now.

[olddav]

sharpshooter

Can you provide a pic as to where this code is stamped, and where can one find a complete list of twist codes?
Always interested in learning a little more!

[Zero333]

I hate how Savage sells the M12 LRP 243win with the 9.25" twist.

If you're gonna call a rifle "Long Range Precision" and chamber it for the 243win, it effin better have a 7.5" or 8" twist.

Ruger did their Homework well... their RPR in 243win has a 7.7" twist... PERFECT in my opinion.

[Robinhood]

It's a good thing you guys didn't bet real money on it.......

There most certainly IS a twist code. Unless is it a twist other than standard for the caliber, it won't be marked. If more than one twist is available for the same caliber, it will be on the caliber code. For example: 6mm's....
.243 Win, 1-9.25", caliber code "U".
6 BR Norma, 1-8", caliber code "JJ" 8
6 BR Norma, 1-12", caliber code "JJ"12

.224's
.223 Rem, 1-9", caliber code "M"
.223 Rem, 1-7", caliber code "M"7
.22-250, 1-12", caliber code "K"
.22-250 , 1-9", caliber code "K"9

Now you can quit speculating...you've been skooled.

Too bad there is not a "like" button.
Are these the only ones or are there also codes for the 7mm and the 30 Cal?

[RC20]

It's a good thing you guys didn't bet real money on it.......

There most certainly IS a twist code. Unless is it a twist other than standard for the caliber, it won't be marked. If more than one twist is available for the same caliber, it will be on the caliber code. For example: 6mm's....
.243 Win, 1-9.25", caliber code "U".
6 BR Norma, 1-8", caliber code "JJ" 8
6 BR Norma, 1-12", caliber code "JJ"12

.224's
.223 Rem, 1-9", caliber code "M"
.223 Rem, 1-7", caliber code "M"7
.22-250, 1-12", caliber code "K"
.22-250 , 1-9", caliber code "K"9

Now you can quit speculating...you've been skooled.

So, the lack of a code is a code as well. Very tricky.

Great on the information.

I Stand whipped, beaten and chastised.

[dfrosch]

Thanks Fred! You rock! I stand corrected. Do you have a complete list? I know 7mm-08 barrels have had a couple different twists.

Mr. F - Sure would be nice to put a sticky on this.

[Keith_A]

When in doubt, measure it yourself. Twist rate is very easy as Zero333 (above) stated. Last summer I saw a Savage 10 BA Stealth (6.5 Creedmoor) which was advertised with a 1:8 twist that repeatedly measured 1:7 1/2.

Keith

[J.Baker]

When in doubt, measure it yourself. Twist rate is very easy as Zero333 (above) stated. Last summer I saw a Savage 10 BA Stealth (6.5 Creedmoor) which was advertised with a 1:8 twist that repeatedly measured 1:7 1/2.

Keith

Ask most any barrel maker and they will tell you that any button rifled barrel has a +/- 1/2" tolerance.

[joeb33050]

It's a good thing you guys didn't bet real money on it.......

There most certainly IS a twist code. Unless is it a twist other than standard for the caliber, it won't be marked. If more than one twist is available for the same caliber, it will be on the caliber code. For example: 6mm's....
.243 Win, 1-9.25", caliber code "U".
6 BR Norma, 1-8", caliber code "JJ" 8
6 BR Norma, 1-12", caliber code "JJ"12

.224's
.223 Rem, 1-9", caliber code "M"
.223 Rem, 1-7", caliber code "M"7
.22-250, 1-12", caliber code "K"
.22-250 , 1-9", caliber code "K"9

Now you can quit speculating...you've been skooled.

I JUST TOOK THE 22-250 ORIGINAL BARREL OFF MY STRIKER. THERE IS A "K" IN A CIRCLE ON THE BARREL. THE NEW-TO-ME REPLACEMENT BARREL HAS A "K", NO CIRCLE. BOTH 12" TWIST?
THANKS;
joe b.

[J.Baker]

Thanks Fred! You rock! I stand corrected. Do you have a complete list? I know 7mm-08 barrels have had a couple different twists.

Mr. F - Sure would be nice to put a sticky on this.

If/when we get a full list I'll add it to the FAQ's section on the website. I'm subscribed to this thread so if you have a barrel with a caliber/twist code that isn't already listed please post it up so it can be added to the list. The list below is of the current caliber/twist offerings per the 2017 catalog and the codes Fred has already provided. Note that everything left will likely only have a letter code since it's only ever been offered in the one "standard" twist rate.

To date:

Cartridge	Twist Rate	Code
.204 Ruger	1-12
.223 Rem	1-9	M
.223 Rem	1-7	M 7
.22-250 Rem	1-12	K
.22-250 Rem	1-9	K 9
.243 Win	1-9.25	U
6BR Norma	1-8	JJ 8
6BR Norma	1-12	JJ 12
.25-06 Rem	1-10	N
.260 Rem	1-8
6.5 Creedmoor	1-8
6.5-284 Norma	1-8
.270 Win	1-10
.270 WSM	1-10
7mm-08 Rem	1-9.5
7mm Rem Mag	1-9.5
.30-06 Spfld	1-10
.308 Win	1-10
.300 WSM	1-10
.300 Win Mag	1-10
.338 Fed	1-10
.338 Lapua	1-9
.375 Ruger	1-12

[dfrosch]

270 wsm 1-10 DD

[olddav]

I have a 30-06 barrel the the letter Y, can anyone else comfirm?

[Evlshnngns]

Stevens g code build date, .223 marked s7 sp7??? Ill check what it is next time I clean it.

[celltech]

.308 12FV - "SP24" and "F16" stamped on it...
.308 Axis II XP - "SP26" and "A29"
.22-250 12FV - "SP11" and "A902"
.22-250 12FV - "SP24" and "A21"
.223 12FV - "SP2" and "A11"


So yeah, I am not sure this means anything about a twist rate...

[J.Baker]

Those are the proof and assembly stamps. The caliber twist mark is usually covered by the barrel nut as it's stamped on the forward edge of the threads.

[Hotolds442]

338 WinMag 1-10” V
300 WSM 1-10”. D1