twist rate help

[handgunner308]

Im trying to get a custom barrel for a thompson center encore pistol in .308win...
the problem is they ask me for a twist rate but i have no idea what to choose
im getting a 15 inch bull barrel and shoot market brand loads like Federal, Hornady, Remington, and so on... i do not do reloading and do not make custom ammo so i do not know wich twist rate will be best out of a 15 inch barrel
so what should be the best twist rate for my barrel?
remember its a 15 inch bull barrel no muzzle break and shooting market brand loads, no custom reloads just market brand hunting/sporting loads

 

[GURU1911]

Contact alex hamilton @ 10-ring precision in san antonio, texas or mr. Jd jones @ ssk industries can help you.

Btw: Send that barrel to mag-na-port and get the rifle style porting job done--will reduce the muzzle climb almost 50%

 

[rcmodel]

1/12 is the industry standard for rifles in .308.
T/C uses 1/10 in it's 15" Contender & Encore barrels.

You will lose a little velocity out of a 15" barrel, but not that much to require a faster then normal twist.

Personally, I think 1/10 would do nicely.

rc

 

[rcmodel]

The OP has duplicate threads running here, and in Competation Shooting, and in Handguns, General.

Maybe one of the mods could combine all three threads, and we could settle on 1/10 and be done with it!

rc

 

[handgunner308]

sorry... with this economy were in i want the best that i can get for my money... i want to be 100% sure i get the best barrel for my needs wich is shooting market brand hunting/sporting loads for hunting..... im a guy who wants his moneys worth so i want to hit my target... sounds like 1:10 would be best to get if rifles would be going 1:12 i guess 1:10 would be better since i have the shorter barrel of 15 inches vs. a rifle with a 20 inch barrel

 

[NELSONs02]

1:10 is what I would choose.

 

[NCsmitty]

I use TC barrels on my Contender and I'm very satisfied with them, but there are some good barrels being made by other companies.

If you're going to shoot medium weight bullets (150-168gr) through the 15" barrel, then 1in10" twist should be the best choice.

Bullberry makes good barrels by reputation.

http://www.bullberry.com/barrels.html


NCsmitty

 

[handgunner308]

my 2 choices are matchgrademachine.com barrel or eabco.com barrel but bullberry is nice too

 

[triggerman770]

twist

once you determine the weight of bullets you are going to shoot/hunt with it is easier to determine the twist rate. but like RC said 1/10 can get you to 168-175 grain bullets(and anything lighter) and porting is advised

 

[rcmodel]

but like RC said 1/10 can get you to 168-175 grain bullets

1/10 can get you to 220 grain RN bullets.

1/10 is the standard twist for the 30-40 Krag, and they handle 220 RN's just fine at about the same velocity the OP will get with a 15" .308 barrel.

rc

 

[handgunner308]

can someone give me a good process for barrel break in process. approx. how manny shots needed and how to clean and the barrel b4 another shot and so on and so forth
as for bullet weight im just shooting whatever.. anything i can find on the shelves and from there on out shoot whatever shoots best for my firearm

 

[rcmodel]

Oh NO!!!
Another barrel break-in thread starting!!

Seriously, I'd just shoot it, go home and clean it, then go shoot it the next time.

I have never used the "Barrel Break-in" procedure in my life, and I own, and have built several varmint rifles that will put all the bullets in one hole at 100 yards all day long.

When I start with a new barrel, I put the scope on and go sight it in.
Then I go home and clean it with Hoppes #9 & patches.

Next comes load development shooting, and I do the same thing there.

By the time I get the best load nailed down, the barrel is "broken in".

rc

 

[handgunner308]

jeesh sorry my questions piss you off so much.....
if barrel break in was not important why would larry potterfield from midway USA recomend it and why would they do a barrel break in for a .408 cheytac for you when you order one and why would ppl be recomending barrel break in?