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257 Weatherby Mag

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  #8  
Unread 01-24-2013, 06:07 AM
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Join Date: Sep 2011
Location: Germany
Posts: 159
Re: 257 Weatherby Mag

How often do you have to clean the barrel chemicaly to preserve accuracy?
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  •   #9  
    Unread 01-24-2013, 06:32 PM
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    Join Date: Jan 2013
    Location: Friendswood, TX
    Posts: 105
    Re: 257 Weatherby Mag

    After the break in of the barrel, I swab mine after each hunting season. Or if I shoot a lot I will swab the barrel after about 50 to 100 rnds.
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      #10  
    Unread 01-31-2013, 11:50 PM
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    Join Date: Jan 2013
    Location: Friendswood, TX
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    Re: 257 Weatherby Mag

    Bump
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      #11  
    Unread 02-01-2013, 03:16 PM
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    Join Date: Dec 2005
    Location: Notthwest MO
    Posts: 169
    Re: 257 Weatherby Mag

    I have the same rifle set in a bc medalist stock. Mine had a definite preference for the 115 gr class of bullets.
    I have never fired a factory round thru it but I settled on shooting a 115 bt with norma brass, fed 215, and retumbo at 3400. Oal is 3.34. If you want to try that load start about 71.5 gr and work your way up. I settled at 73 gr. Mine still copperfouls some so I clean about every 25 rounds. Accuracy has been 1/2 moa or better to 500 yds so far. 200 yd groups have been 1/2-1" consistantly.
    I tried imr 7828, hybrid 100v, imr 4350 and h1000. Hybrid100 was best with the 100 gr bullets with velocity about 3550. If you want to shoot the 110's I would try h-1000 first. If you want any of the numbers let me know. I chronoed everything and found max loads in all of them for my rifle.
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      #12  
    Unread 02-02-2013, 07:03 AM
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    Join Date: Feb 2012
    Posts: 987
    Re: 257 Weatherby Mag

    my old stainless vangurard would foul quickly too. After about 15 shots accuracy would go to hell. I lapped it with the tubbs system and it seemed to improve but i didnt have it long enough after that to really tell. My cdl shoots better and doesnt foul near as bad.
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      #13  
    Unread 02-04-2013, 07:13 PM
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    Join Date: Jan 2013
    Location: Friendswood, TX
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    Re: 257 Weatherby Mag

    Bump
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      #14  
    Unread 02-04-2013, 09:10 PM
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    Join Date: Mar 2012
    Location: Nebraska
    Posts: 156
    Re: 257 Weatherby Mag

    Reload it's way cheaper and more accurate.
    Try 3 Lee's reloading supplys in Grand Island Ne.
    I bought 100 cases for $87.00
    You just can't beat that.
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