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New LRH Rifle Build Info & Help

 
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  #1  
Old 05-25-2005, 05:18 PM
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Join Date: Jul 2004
Location: Florida
Posts: 50
New LRH Rifle Build Info & Help

Guys,
Im sending my deposit tomorrow for a new LRH rifle build. I wanted to get your opinions on my choices below. My biggest decision is still on which .30 caliber cartridge to choose (WM vs. WSM}. The force is drawing me to the dark side (WSM), while OBI-WAN is telling me to stay with the good old light saber (WM). My goal is to have the rifle built and come in at a weight of 9 lbs. without scope/base/rings. All input, pros & cons, will be appreciated!

Rem SS Long Action (7 Ultra Donor)
Rem Trigger 2.5#
300WM or 300WSM
McMillan M40A1 HTG Stock (lightest weight possible, Edge Technology?)
Broughton 24-26 barrel (M24 Taper or close)
Badger Brake
Badger Bolt Knob
Badger Titanium Recoil Lug
Badger Aluminum Base & Rings
HS Precision Detachable Mag & Trigger Guard

Thanks!

Jeff in Florida [img]/ubbthreads/images/graemlins/cool.gif[/img]
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  #2  
Old 05-25-2005, 06:27 PM
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Join Date: Mar 2003
Location: Boise, Idaho
Posts: 419
Re: New LRH Rifle Build Info & Help

What weight of bullet will you primarily use?

I'm sure someone will correct me if I'm wrong, but I do believe that the WSM starts loosing the battle when bullet weight gets higher than 180gr.

The bullet weight you will shoot can also impact what twist you want in the barrel.
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  #3  
Old 05-26-2005, 01:47 AM
daveosok
 
Posts: n/a
Re: New LRH Rifle Build Info & Help

Gonehuntingagain is right about the bullet weight. Once you get over 180 grains the case capacity of the 300 wm will beat out the wsm.
I have a WSM and it performs really good, I like the 168 grain Berger's though in it and groups size as well as 500 yard trajectory is par with the 190 Berger's. Beyond the 500 yard mark is where the 190's come into play.
I think that the case capacity of the wsm suggests that anything over 180 may net you diminishing returns provided barrel length is at factory specs.
I would pick the wsm myself as it is non-belted, and has a short powder column, headspace is taken off a datum on the shoulder and not a belt. According to a lot of folks and myself included it should be more inherently accurate because of these traits.
JM2C
Dave
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  #4  
Old 05-26-2005, 11:24 AM
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Join Date: Oct 2004
Location: Northamptonshire England
Posts: 676
Re: New LRH Rifle Build Info & Help

Hi Gonehuntinagain,
I too shoot 300wsm and my rifle is a Win 70 Stealth with a heavy 24" barrel.
I primarily load my cartridges with Lapua 185g Scenars which i chamber singularly and can honestly say that when i seat them to touch the rifling(coal.2.889" with 63.5 grns of H4350 ext for 2850fps) i can fit another 3grns of powder over max,(Sierra manual 66grns max for 180MK) before the base of the bullet contacts the powder cloumn.

This bullet not being a VLD type, has a smaller radius ogive, which theoretically means i should be able to seat 195grn and 210grn Berger VLDs to a similar if not longer coal, leaving me able to experiment carefully with the extra space. I would be aiming to safely get 2950 to 3000fps with the 210grn VLD. [img]/ubbthreads/images/graemlins/cool.gif[/img] [img]/ubbthreads/images/graemlins/cool.gif[/img]

Ian.

"I mean't to shoot the pike but the duck got in the way"
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  #5  
Old 05-26-2005, 03:28 PM
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Join Date: Jul 2004
Location: Florida
Posts: 50
Re: New LRH Rifle Build Info & Help

Guys,
Thanks for the great responses. I have in mind to shoot 180 - 200 grain bullets, but would also like to experiment with some of the heavier ones. Above 180 grains, what twist do you guys reccommend. I am having the rifle built on a long action to be able to use the longer high BC bullets. Also the HS detachable mag should be able to hold the longer cartridges we are discussing whether it be WSM or WM. I want to try the accubonds and I'm pretty hyped about trying the SMK's for hunting.

Jeff [img]/ubbthreads/images/graemlins/cool.gif[/img]
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  #6  
Old 05-26-2005, 06:25 PM
Silver Member
 
Join Date: Mar 2003
Location: Boise, Idaho
Posts: 419
Re: New LRH Rifle Build Info & Help

I use the 200r accubond in my Win M70 with a 1-10 twist. I am not sure how heavy of a bullet this will stabilize but I do believe that it is good for at least a 220gr bullet.

I was shooting them at 2950 fps with the bullet seated to fit in the magazine, but had to back off if I wanted to be able to load the brass more than 2-3 times. I tried seating them out to just off of the lands and was getting 2850 with the same load since there was so much more room in the case. Seating to mag length stuffs that accubond WAY into the case.

I backed off .2gr and am getting 2850 or so with good case life (seated to fit in the mag).
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  #7  
Old 05-26-2005, 08:40 PM
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Join Date: Feb 2004
Location: Virginia
Posts: 61
Re: New LRH Rifle Build Info & Help

If the action was originally for an Ultra-mag, will the feed rails be too wide to hold a standard WM?

Rick
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