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First Build

 
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  #1  
Old 09-29-2010, 10:24 PM
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Join Date: Oct 2008
Location: Northern California
Posts: 33
First Build

Hello all,
Building my first custom rifle, I'm using my Sako L61R in 300 Win Mag as the base, thinking of a 26" Brux sporter barrel in #2 contour w/a muzzle break. Since I'm going to use this as a long range hunting rifle I have a question about twist and number of grooves. I was thinking a 5 groove 1-9 twist, planning on shooting 165-180 grain bullets. I have a Bell and Carlson Carbelite stock for it already. I'm going to have it bedded, trigger adjusted to my liking. What recoil pad do you folks recommend ? Also looking for a good Smitty in my area of Northern California so if anyone can weigh in on that I would appreciate it. Looking forward to the wisdom of this group,

Ranger Jim
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  #2  
Old 09-30-2010, 11:43 AM
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Join Date: Dec 2009
Location: Redmond Or.
Posts: 2,527
Re: First Build

You shouldnt need any more than a 10 twist especially for the 165-180gr class bullets. If your gonna shoot Bergers wich are notoriously fragile, you wont want that fast of twist cause itll chew em up before they get out of the bbl. If your shooting a tougher like an Accubond bullet, a 9 twist is fine, but a 10 twist will stabilize even most 220gr bullets.
The only reason Id go with a 9 twist would be for super heavy and long bullets but Id go with a ratchet rifled barrel if I did it.
A 9 twist will work as long as the bullets arent too fragile.
Sounds like a fun build. Good luck

Recoil pads
Hands down best ever IMO is limbsaver. I use them and love them.
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Last edited by winmag; 09-30-2010 at 11:47 AM.
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  #3  
Old 09-30-2010, 05:57 PM
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Join Date: Jan 2005
Location: OK
Posts: 2,145
Re: First Build

Jim, as winmag said a 9 is too fast, besides the fact wm pointed out you will also get more gun tourque with the fast twist. I would go with an 11Twist.

On Brux barrels, their 308 bores are 4 groove and they will not make a #2 out of Stainless but will out of Crome Moly.

If by long range you mean 300 yards by all means. If you want 500+ I would go with a #4 contour minimum. A little more gun weight makes the rifle a little more user friendly. The difference between the two contours is less than a pound. You can save weight in the scope, mounts and stock, if you want light weight.
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  #4  
Old 09-30-2010, 06:08 PM
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Join Date: Jun 2010
Location: Bakersfield, Ca
Posts: 554
Re: First Build

Limbsaver recoil pads are the best imo. Also if building for long range, why not a. 300rum? I also would recommend a Holland or defensive edge type break, I use a Holland qd and love it.
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  #5  
Old 09-30-2010, 07:39 PM
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Join Date: Jul 2004
Location: OHIO
Posts: 2,419
Re: First Build

I'm sure the problem has been corrected by now but Limbsaver had a serious melting problem with their recoil pads not so long ago. I prefer the Pachmyer decelerator myself. A proven recoil pad. If you are going to have a muzzle brake, the recoil pad is not quite as important.

I would NOT use a 9 twist unless you are going with a 240 weight bullet. Defintely stick with a 10 or 11 twist if keeping with 180 weight bullets or less. 11 twist is an excellent choice in 30 cal for 180 bullets.

I like fewer grooves personally. I like 5 or less. I love my Lilja 3 grooves. 4 grooves would be perfect. I've been very curious about the Brux barrels. I may have to try one sometime.

I would not use a #2 for a 300 Win mag. I would want at least a #3 or 4 depending on what the OD is at the muzzle at the length you want it. As to builders, just my opinion, but I wouldn't get hung up on picking one based on location. Choose a good one no matter location, who has a proven record and knows what they are doing. There are many on this site. Kirby built a rifle for me. I've not used anyone else here. I'd just factor in shipping and get it to a good one.
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  #6  
Old 09-30-2010, 09:21 PM
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Join Date: Oct 2008
Location: Northern California
Posts: 33
Re: First Build

Thanks for all the replies, I sent a pm to Brux and they responded right away, you just have to like that. They also recommended a 10 twist, definatley sticking between 165-180 grain bullets for Blacktail and Mule Deer. As far as a Smitty goes, I like to keep my business local but if there is not a Smitty with a good rep close then i will send it out. I'm definitely not stuck on any one brand for the barrel or brake so I'll do some shopping around for those. Thanks again,

Ranger Jim
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  #7  
Old 09-30-2010, 09:29 PM
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Join Date: Jan 2008
Location: Falls Church, VA
Posts: 3,280
Re: First Build

Quote:
Originally Posted by Ranger Jim View Post
Hello all,
Building my first custom rifle, I'm using my Sako L61R in 300 Win Mag as the base, thinking of a 26" Brux sporter barrel in #2 contour w/a muzzle break. Since I'm going to use this as a long range hunting rifle I have a question about twist and number of grooves. I was thinking a 5 groove 1-9 twist, planning on shooting 165-180 grain bullets. I have a Bell and Carlson Carbelite stock for it already. I'm going to have it bedded, trigger adjusted to my liking. What recoil pad do you folks recommend ? Also looking for a good Smitty in my area of Northern California so if anyone can weigh in on that I would appreciate it. Looking forward to the wisdom of this group,

Ranger Jim
Barrel Length - with the 300mag, why not go 28" or even 30". That way you maximize the ballistic capability of the magnum cartridge.

Barrel Contour - as others have said, #2 is too small. Consider at least #4 or larger. If you intend to use the gun as carry-rifle weight might be an issue. If it's not really a carry rifle, go heavier. My 260 weighs 13.5lbs and with an Outlaw sling, i will carry it pretty far the barrel on it is .875" at the muzzle.

Twist - 9 is too fast. Go with 10 or 11. Generally speaking, I have found that most folks use 11 as it will stabilize the 220grain bullets. My next build will be a 300rum. Haven't decided yet whether 28 or 30" but almost definitely 11 twist.

Recoil Pad - with a good muzzle brake, recoil pad won't really matter.

Gunsmith - Kevin Cram at Montour County Rifles.... Montour County Rifles
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