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.300 RUM twist rate

 
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  #1  
Old 09-22-2010, 01:13 PM
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.300 RUM twist rate

Building a .300 RUM and going to order a barrel soon. It will be more of a BR/Truck gun and will be 30" long. Contemplating twist rate through, 1:10 or 1:11. Wanted to shoot 180-210 grain bullets, need to see what shoots best. What are your thoughts on the twist rate?
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Old 09-22-2010, 01:34 PM
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Location: Long Island, New York
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Re: .300 RUM twist rate

Quote:
Originally Posted by bh5k View Post
Building a .300 RUM and going to order a barrel soon. It will be more of a BR/Truck gun and will be 30" long. Contemplating twist rate through, 1:10 or 1:11. Wanted to shoot 180-210 grain bullets, need to see what shoots best. What are your thoughts on the twist rate?
I've got a 28" Broughton 11 twist on my 300 RUM. The most accurate bullet so far has been the Berger 210 VLD. I can't imagine that a faster twist would accomplish anything but I'd be interested to hear what other RUM shooters have experienced.
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Old 09-22-2010, 01:40 PM
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Re: .300 RUM twist rate

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Originally Posted by Varmint Hunter View Post
I've got a 28" Broughton 11 twist on my 300 RUM. The most accurate bullet so far has been the Berger 210 VLD. I can't imagine that a faster twist would accomplish anything but I'd be interested to hear what other RUM shooters have experienced.
How do you like that Broughton? Seems like the more "hunting" style rifles are shooting the Broughton's and the BR guns are Bartlein's, but maybe I am reading that wrong.
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Old 09-22-2010, 06:33 PM
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Re: .300 RUM twist rate

It shoots less than .5moa @ 300 yds where I do most of my shooting. The 5C rifling is supposed to shoot faster and be easier to clean than conventional rifling. I'm not sure how anyone could verify these claims about the canted rifling barrels but I have read it on a few different forums.
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Old 09-22-2010, 07:41 PM
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Re: .300 RUM twist rate

So I split the difference, I ordered a 10.5. The guy I talked to said that a little bit faster for the heavier bullets would help it stabilize better. Now I just have to wait for the action and the barrel to show up...in March...
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Old 09-24-2010, 01:33 AM
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Re: .300 RUM twist rate

What bullet do you plan to shoot out of your 300RUM?

There can be a lot of difference between bullets of similar weight. e.g. Nosler AccuBonds are so long that a throat cut for those would have mega freebore for something like a Sierra MatchKing. Something else to consider along with twist...

I ordered a similar barrel; 300 RUM 30" 1:10
I originally wanted this barrel for 200gr AccuBonds. I have since changed my mind and am going with 200gr SMKs. Good thing for the long wait.
I keep worrying if I choose a good bullet or not and if it will shoot well.
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Old 09-27-2010, 07:04 AM
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Re: .300 RUM twist rate

Quote:
Originally Posted by el si View Post
What bullet do you plan to shoot out of your 300RUM?

There can be a lot of difference between bullets of similar weight. e.g. Nosler AccuBonds are so long that a throat cut for those would have mega freebore for something like a Sierra MatchKing. Something else to consider along with twist...

I ordered a similar barrel; 300 RUM 30" 1:10
I originally wanted this barrel for 200gr AccuBonds. I have since changed my mind and am going with 200gr SMKs. Good thing for the long wait.
I keep worrying if I choose a good bullet or not and if it will shoot well.
Well, it's kind of funny. I have always been under the impression that the gun will choose the bullet and not the shooter. In other words, I would like to shoot a bullet from 180-210, it all depends on what the gun wants to shoot. I would like to look at some of the VLDs in that weight range. In talking with the guys at Bartlein, he made a few tweaks and recommendations. It was his idea to step up to the 10.5.
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