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338RUM or 338/300RUM in 28" tube?

 
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  #8  
Old 04-22-2012, 10:49 PM
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Join Date: Feb 2012
Location: Colorado Springs ,Co
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Re: 338RUM or 338/300RUM in 28" tube?

I can't wait to see what Reloader 33 has to offer to the 338rum and lapua FPS gains. sounds promising.

sure hope its hype is up the challange! 100fps increase?
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  #9  
Old 04-23-2012, 01:19 AM
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Re: 338RUM or 338/300RUM in 28" tube?

The two cartridges give the same performance so that is not your decision. You are not going to gain anything over the other in any length barrel. When the 338 RUM came out in 2001 I tested it head to head with several different barrels with the 338-300 RUM I had been doing since 1998. Same thing performance wise concerning accuracy or velocity.

Your decision is do you want a wildcat or factory cartridge. After the 338 RUM came out in 2001 and guys could shoot both at my range everyone went with the 338 RUM. No need the expense and trouble of wildcatting when a factory cartridge does the same thing.
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  #10  
Old 04-23-2012, 08:52 AM
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Re: 338RUM or 338/300RUM in 28" tube?

Quote:
Originally Posted by Long Time Long Ranger View Post
The two cartridges give the same performance so that is not your decision. You are not going to gain anything over the other in any length barrel. When the 338 RUM came out in 2001 I tested it head to head with several different barrels with the 338-300 RUM I had been doing since 1998. Same thing performance wise concerning accuracy or velocity.

Your decision is do you want a wildcat or factory cartridge. After the 338 RUM came out in 2001 and guys could shoot both at my range everyone went with the 338 RUM. No need the expense and trouble of wildcatting when a factory cartridge does the same thing.
I agree - I think people get wrapped up in all the hype that surrounds "wildcatting", it's happened to me.
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  #11  
Old 04-23-2012, 09:17 PM
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Re: 338RUM or 338/300RUM in 28" tube?

I actually own both now started with the edge in a 28" pipe would swear you could fill it half with sawdust and shoot great. My gunsmith told me it was a sweet chambering and i have to agree. Now i have a factory 338 rum i put on a de brake, basix trigger and B&C stock. Im sticking with the sierra 250 grain bt spitzer and getting some awsome groups with it using 96 grains of H-1000. I had trouble first day out working loads from 95-97 grains shooting 1.5- 1 3/4 groups. I came home seated the bullet out farther, changed rest, and beared down got a group at .318, .900, and .605. Im very happy with that for a factory barrel. I am hesistant to try the 300 thinking i might have to much barrel wip. I plan on taking it to Co. this fall as a Lr carry rifle.
Mike
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  #12  
Old 04-23-2012, 09:26 PM
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Re: 338RUM or 338/300RUM in 28" tube?

My 28 inch barreled 338 edge is shooting 300 gr SMK 2880fps well under 1/2 MOA with no pressure signs. I use RL 25 powder.My 26 inch barreled 338 ultra shoots the same bullet at 2750 fps.
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  #13  
Old 04-23-2012, 09:28 PM
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Re: 338RUM or 338/300RUM in 28" tube?

The 338 ultra and 338 edge do not give exactly the same performance. The edge has a advantage. Not alot but it is there.
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  #14  
Old 04-23-2012, 09:38 PM
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Re: 338RUM or 338/300RUM in 28" tube?

Quote:
Originally Posted by highridge1 View Post
My 28 inch barreled 338 edge is shooting 300 gr SMK 2880fps well under 1/2 MOA with no pressure signs. I use RL 25 powder.My 26 inch barreled 338 ultra shoots the same bullet at 2750 fps.
Is your rum a factory rifle? What is your load with R-25? I jst thought the 300 may be too much for the smaller taper factory rifle.
Mike
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