Ammo in a 1 to 10" twist .308

View previous topic View next topic Go down

Ammo in a 1 to 10" twist .308

Post by Libertyrules on Wed May 25, 2011 8:43 pm

It's a 24" Douglas barrel on a Savage 12 F/TR. The gunsmith says this barrel is 1 to 10" twist. (He's re-bedding it)

I asked & he said I should be able to fire 155 gr bullets, but it may be over-stabilized at that twist rate. What do you think?

Libertyrules
Veteran Poster
Veteran Poster

Posts: 309
Join date: 2010-02-22
Age: 73
Location: Greenville, MS

http://americaholds.blogspot.com/

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by jbpmidas on Wed May 25, 2011 8:45 pm

What are you trying to accomplish?

jbpmidas
Contributing Member
Contributing Member

Posts: 8224
Join date: 2009-05-21
Age: 35
Location: Amory, MS

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by msredneck on Wed May 25, 2011 9:08 pm

I have a 1:10 .308 that loves 150's...but I swear I think it shoots everything well

The answer is maybe....

Only way to know is work up a load...many hours of "work" Razz

msredneck
Contributing Member
Contributing Member

Posts: 15520
Join date: 2009-04-20
Age: 55
Location: Clinton, MS

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by nonnieselman on Wed May 25, 2011 10:29 pm

Find the heaviest bullet it likes and your set :-)
my 308 has a 20" 10 twist and it likes 175smk and 190smk. It shoots the 175 good subsonic and super sonic.
When you spin a bullet too fast it can start to 'wobble' too many rpms and it will show the imperfections of how well the bullet is balanced.
Let us know what you come up with.

nonnieselman
Distinguished Poster
Distinguished Poster

Posts: 3411
Join date: 2010-01-20
Age: 29
Location: Crystal Springs

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by PhillipM on Wed May 25, 2011 10:59 pm

Libertyrules wrote:It's a 24" Douglas barrel on a Savage 12 F/TR. The gunsmith says this barrel is 1 to 10" twist. (He's re-bedding it)

I asked & he said I should be able to fire 155 gr bullets, but it may be over-stabilized at that twist rate. What do you think?

I think six million M1 garands were made for 150 grain bullets with a 1:10 twist.

PhillipM
Distinguished Poster
Distinguished Poster

Posts: 4388
Join date: 2010-07-18
Age: 45
Location: Byram

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by jbpmidas on Thu May 26, 2011 6:10 am

PhillipM wrote:
Libertyrules wrote:It's a 24" Douglas barrel on a Savage 12 F/TR. The gunsmith says this barrel is 1 to 10" twist. (He's re-bedding it)

I asked & he said I should be able to fire 155 gr bullets, but it may be over-stabilized at that twist rate. What do you think?

I think six million M1 garands were made for 150 grain bullets with a 1:10 twist.

Is that all? We may need a few more test pieces! wall bash

jbpmidas
Contributing Member
Contributing Member

Posts: 8224
Join date: 2009-05-21
Age: 35
Location: Amory, MS

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by Doug Bowser on Thu May 26, 2011 7:52 am

Just try the 155's out. I used to use 168 Hornady and Sierra Match bullets in my NM M1 Garand, with great results.

Doug

Doug Bowser
Distinguished Poster
Distinguished Poster

Posts: 3963
Join date: 2009-04-20
Age: 72
Location: McComb, MS

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by Libertyrules on Thu May 26, 2011 11:59 am

(We lost power here last night at 9:30, or I would have replied sooner.)

Well, the brown truck just delivered 200 155 SMK's. I got this rifle to try my hand at long-range shooting - up to 600 yds. I confess I've had trouble sighting through the super sniper, so the gunsmith is going to move the scope forward a bit, hope that helps.

I've been working up loads for 175 SMK with Varget, IMR4598, IMR4064, with rather poor results. Mildot said he was running Lapua 170gr lockbase, but I was unable to get those & got the 175's instead. The 'smith (Doug Wasson) said re-bedding should help, oh and there was a trigger lockup due to the back of the Savage trigger assembly touching the stock, and he's fixing that too.

I've got a few different powders to try (W798, IMR3031, and IMR8208 XBR). I know it's not the powder, it's me, but I want to try them all.

I love the challenge, and I appreciate all the advice., so will give range report soon.


Libertyrules
Veteran Poster
Veteran Poster

Posts: 309
Join date: 2010-02-22
Age: 73
Location: Greenville, MS

http://americaholds.blogspot.com/

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by Beladran on Thu May 26, 2011 12:31 pm

I'M a fan of the 168 bullets

Beladran
Moderator
Moderator

Posts: 8270
Join date: 2009-04-16
Age: 30
Location: McComb

http://Junikerjewelry.com

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by Libertyrules on Thu May 26, 2011 1:11 pm

Beladran wrote:I'M a fan of the 168 bullets

I know, a lot of people swear by the 168 bullets. Guess that's next on my list of to-do's. Gonna try the 155's first - just as soon as Doug finishes re-bedding the action & fixing the trigger prob. - I'm loading up rounds today.

Libertyrules
Veteran Poster
Veteran Poster

Posts: 309
Join date: 2010-02-22
Age: 73
Location: Greenville, MS

http://americaholds.blogspot.com/

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by Beladran on Thu May 26, 2011 1:17 pm

im gonna be in g ville getting junk out of storage.. i got a box of molyized 168's your welcome to try out

Beladran
Moderator
Moderator

Posts: 8270
Join date: 2009-04-16
Age: 30
Location: McComb

http://Junikerjewelry.com

Back to top Go down

Re: Ammo in a 1 to 10" twist .308

Post by Libertyrules on Thu May 26, 2011 1:39 pm

pm sent

Libertyrules
Veteran Poster
Veteran Poster

Posts: 309
Join date: 2010-02-22
Age: 73
Location: Greenville, MS

http://americaholds.blogspot.com/

Back to top Go down

View previous topic View next topic Back to top

- Similar topics

Permissions in this forum:
You cannot reply to topics in this forum