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Barrel Twist?

 
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  #1  
Old 01-27-2009, 04:07 PM
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Join Date: Jan 2009
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Barrel Twist?

So I've been a member here for a whopping 30 mins and have already found a lot of great help. I was looking to build a long range rifle this year and really like the Savage 308 as a base. I've read a lot of good on the Savage especially the AccuTrigger but have read a lot on barrels ant the twists or turning and I'm not sure which is better. I've seen like 1:8, 1:10 and 1:12 most commonly and was wondering which is better or if one is better for something than the other. I was planning on a Savage 308 with a composite thumb hole stock and a Bushnell Elite 4200 8-32x40mm scope to start off with but was wondering if I would really need a new barrel. I've read that the Savage barrel is good of your only shooting like 300 yards but not sure how true that is.
Thanks
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Old 01-27-2009, 05:05 PM
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Re: Barrel Twist?

1st off welcome!

2nd, as far as twists, it depends on the bullets you want to shoot. My preference in the 308 is 12x for 150-180 grain pills. 12 will also stabilize the 190's but isnt optimum. 11.25 is perfect for the 180-210 variety and is a sweet spot for the 190's. I have also had phenominal results with the 155's and 150's with the 11.25 twist at slower velocities like around 2750-2800. 10x is for really heavy bullets. Any bullet requiring a 10x is really too heavy for the 308 (IMHO). 308's are most optimum with 150-190 grain bullets. Again, my humble opinion.

3rd, as far as a savage barrel only being good to 300 yards is not true. It will depend on any given barrel's accuracy potential. Obviously if any barrel only yields 1.5 MOA then 300 yards would be about all it could handle. A barrel capable of 1/2 MOA would shoot much more than 300 yards. It all depends on a given barrel. Most savage 308's do fairly well as do the remingtons. Either in 308 should get you to 600+ even for a factory rig.

Hope that helps!
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Old 01-27-2009, 05:41 PM
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Re: Barrel Twist?

Thanks, it definatly does.
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Old 01-27-2009, 06:09 PM
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Join Date: Dec 2001
Location: Potters Hill, NC
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Re: Barrel Twist?

CarRamRod,
I don't have alot of experience with the .308Win so I won't comment on that. Savage rifles I have experience with. I have owned two 110FP's in the past (7mmRM and .223Rem) and both were sub 1/2" rifles. I shot a few .1's with the .223, but it mostly ran in the .2's. The Savage 7mm I got rid of because I already had a 7mm Sendero and didn't want the aggrevation of separating brass. I did minimal load development with it, but it shot 1/2".
I currently have a 112BVSS in .300WinMag and two days ago I shot a 1.7" (3shot) group at 300yds and a 3.6" group at 560yds. Yeah, they shoot.
I wouldn't worry about swapping the barrel out till I had shot it first. It may take a few rounds to get the roughness outta the barrel. Do a proper break-in and things should come around quickly and the barrel will settle down and commence to shooting. JohnnyK.
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  #5  
Old 01-27-2009, 06:49 PM
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Join Date: Jan 2008
Location: Falls Church, VA
Posts: 3,263
Re: Barrel Twist?

CarRamRod:
You've gotten some good advice on your rifle of choice and I won't argue with it. I will caution you on your scope choice though. According to the Bushnell website (Bushnell Outdoor Products) this scope only has 20moa total adjustment. Your 308 will need somewhere in the neighborhood of 40moa 'up' to reach 1k. Even if you use a canted base this scope will not have enough adjustment to be able to shoot long range.

In the alternative, Bushnell makes an inexpensive scope that has 100moa Bushnell Outdoor Products. Use a 30moa canted base with this scope and you can reach past 1k.

If you've got money to spend though, there are lots of good scopes out there that will do the job well....Nightforce, Sightron, Leupold....on and on and on.
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  #6  
Old 01-27-2009, 07:30 PM
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Join Date: Jun 2007
Location: Wilmington NC
Posts: 4,166
Re: Barrel Twist?

I would not buy a custom barrel right now. There are a lot of used savage 308s for sale on the internet here and and www.savageshooters.com. You can buy complete guns, actions and barrels to make your own righ now very easily.

As of now, I would lean towards the 1-12 for one reason. It will shoot the 175 SMK which has been the go to bullet for years. However, the new Sierra 155 Palma is a new bullet that shoots in the 1-12 very good and shoots with much less drop and wind as compared to the 175.

a 308 at 1k normally needs 37-40 MOA elevation so plan on a scope with at least 60 MOA of elevation and a 20 MOA base like the farrel or others or use the burris signature rings with the 20 MOA inserts.

BH
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  #7  
Old 01-28-2009, 03:47 AM
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Join Date: Jan 2007
Location: South Dakota
Posts: 753
Re: Barrel Twist?

Lilja Precision Rifle Barrels - Caliber and Twist Rates


This should answer your questions bud. Good luck.


Chad
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