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qec238
12-06-2023, 01:50 AM
I just picked up a used model 12 with a serial number that starts with G50xxxx. Any way to determine what the twist rate is? Seems like my choice are 1/7 or 1/9 in the current guns.

Thanks in advance

TimNTN
12-06-2023, 07:51 AM
Mine is marked on the barrel from the factory (9). Its serial number starts with a K so must be a later production.

TimNTN
12-06-2023, 08:06 AM
If the barrel isn't marked just use a cleaning rod.Hope this helps https://www.youtube.com/watch?v=nJS3tb01NU0

pdog06
12-06-2023, 08:10 AM
On the side of the barrel where it says savage model 12 223rem, does it say (7 twist) or (9 twist) right after that? Or if not, then it could possibly be a 12twist,

If it doesn’t say on the side of the barrel the best way to check it is with a mark on a cleaning rod with a tight patch or brush, and see how far it takes to get one revolution on the cleaning rod. It might not be an exact measurement, but it should tell you the difference between a 9 or 12.

Or one call to savage with the serial number would probably tell you. if the barrels never been replaced of course.

Since it’s an older G serial number, does the action have a smaller than normal ejection port? Has nothing to do with your barrel twist. I was just curious cause I liked the small port one I had and they no longer make them.

pdog06
12-06-2023, 08:12 AM
Yours was built from 2001-2009, depending on your exact serial number. Here’s where to figure out exact year in case you’re wondering:

https://www.savageshooters.com/attachment.php?attachmentid=2701

qec238
12-06-2023, 11:31 AM
Looks like mine was made in 2006. No indication of twist rate on the barrel. There is a mark near the receiver on top "SP16".
I shot it over the weekend briefly. Using hand loads my normal 55 grains loads would not group well. 2" type groups. Switched to 69 gr and those shot groups touching each other. I plan on going back later in the week and put more effort in including shooting some 77gr bullets.

Turkeytider
12-06-2023, 11:39 AM
Looks like mine was made in 2006. No indication of twist rate on the barrel. There is a mark near the receiver on top "SP16".
I shot it over the weekend briefly. Using hand loads my normal 55 grains loads would not group well. 2" type groups. Switched to 69 gr and those shot groups touching each other. I plan on going back later in the week and put more effort in including shooting some 77gr bullets.

My Model 12 LRPV with a 7 twist threw 55 grain bullets all over the range the first time I shot it. Fortunately, I had some 68 grain Frontier BTHP Match with me. Zeroed in 3 rounds.

qec238
12-06-2023, 08:11 PM
Good to know. I'm happy shooting 69 and heavier bullets if needed. I can use the 55 on my 1/9 AR. Did you try to slow down the 55 gr. loads to see if they will group? Assuming you hand load.

Dave Hoback
12-06-2023, 08:36 PM
Well, it’s at least 1:9 shooting 69gr pills so well. But something tells me it’s 1:7.

Turkeytider
12-07-2023, 08:24 AM
Good to know. I'm happy shooting 69 and heavier bullets if needed. I can use the 55 on my 1/9 AR. Did you try to slow down the 55 gr. loads to see if they will group? Assuming you hand load.

No, don`t hand load. That`s the one and only time I`ve tried 55`s in that gun. The gun REALLY likes 69 grain Sierra Match King bullets as loaded by Australian Defense Industry ( ADI ). Also, 75`s and 77`s shoot fine as would be expected with that twist rate. I`d try some 80`s, but it appears that factory loads above 77 grains are relatively hard ( and I`m sure would be very expensive ) to come by.

charlie b
12-07-2023, 12:10 PM
If you only have a 1-9 twist the 80's probably won't be stable anyway. 77's are on the ragged edge. I noticed one day near freezing that they had passed the limit.

Sierra says you can use the 90SMK with a 1-7 if you can get the vel up to 2650. The .224 Valkyrie is loaded with the 90gn by Federal.

qec238
12-07-2023, 07:29 PM
Just ran the "cleaning rod measure" and it's between 8 and 9". So I'm guessing it's not 1/7. I've loaded a bunch of different 55, 69 and 77 gr loads. Off to the range tomorrow.

Dave Hoback
12-07-2023, 08:02 PM
It’s 1:9 then because 1:8 was never offered in 223. (As far as I know.) And yes, the 77’s are about on the ragged edge. If the 69’s shot so good, you might simply stay with them.

charlie b
12-07-2023, 11:13 PM
FWIW, my favorite load in the 22" barrel axis (1-9) was 23.5gn of Varget with the 77gn SMK (2805fps). It gave me consistent groups at 600yd less than MOA, even in a little wind. The Hornady 75gn ELDM was almost as good with the same powder charge, but, when seated out it was too long for the magazine.

jpx2rk
12-08-2023, 07:47 AM
I have a Savage LRPV 7 Twist in 223, some 50 and 55g handloads will make it 100yds to the target, others don't, about 1 out 4-5 don't make it. Loves the 68/69g ammo. My barrel is stamped 7T IIRC.

qec238
12-08-2023, 11:14 PM
I went back to the range today with a number of different 55 gr loads. None shot well. Both the 69 and 77 grain loads shot very well

tigermikel
03-15-2024, 06:57 PM
Hey GEC,

I am looking at a 2002 ... it is stainless fluted bull barrel model 12 in .223. Did you find the twist? This looks like the ancestor of the LRPV but has a cheaper stock than current model.

tigermikel
03-15-2024, 07:04 PM
Hey Dave... I am looking at a used Model 12 .223 stainless bull barrel with bull fluted barrel.... did these have 1/9s or 1/8s back then? I have a Remington Varmint from that era and it is a 1/12. I would be thrilled if it is a faster twist. The reported accuracy of that other one would seem to indicate this... mine looks to be a 2002.. THANKS ... I need to tell them in the next hour if I want it. The store put a brief hold on it for me. Thanks Mike

Dave Hoback
03-15-2024, 07:25 PM
Hey Dave... I am looking at a used Model 12 .223 stainless bull barrel with bull fluted barrel.... did these have 1/9s or 1/8s back then? I have a Remington Varmint from that era and it is a 1/12. I would be thrilled if it is a faster twist. The reported accuracy of that other one would seem to indicate this... mine looks to be a 2002.. THANKS ... I need to tell them in the next hour if I want it. The store put a brief hold on it for me. Thanks Mike

Either 1:7 or 1:9 twist. The 1:8 was never offered for the 10/110 series or affiliates, in 223 Rem. 1:8 was only offered on the Savage MSR (AR15) starting in 2018 & with a 223 Wylde chamber.

Edit: If your rifle is 2002, it is 1:9 Twist. The 1:7 wasn’t available in the 10/110 for 223 Rem until 2007.

tigermikel
03-15-2024, 07:40 PM
BTW... I am an old Philly kid- Lafayette Hill. Returned to Philly for grad school at Penn. So thanks! Mike L