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My 260 by MCR

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  #22  
Unread 08-16-2010, 08:48 PM
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Re: My 260 by MCR

Quote:
Originally Posted by jmason View Post
Yea that really sucks! I hope my 7 sucks even worse!!
I meant the accuracy of the factory ammo.

The handloads.... .236"....awesome!

Knowing you, your 7 will be great.
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  •   #23  
    Unread 08-18-2010, 06:54 AM
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    Re: My 260 by MCR

    Wow, very impressive break-in shooting. That rifle is going to be a real shooter!
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      #24  
    Unread 09-11-2010, 07:37 PM
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    Re: My 260 by MCR

    Load development continues....

    The initial load that produced .25moa accuracy, (142SMK, H4831SC, Fed210M) was 'only' going 2730fps and had a terrible ES (30+). I was looking to achieve 2800 with the SMK and to reduce the ES significantly. So today I got out and tried several charge weights and primers. One of them really stood out....

    Bullet: 142SMK
    Powder: 43.5 grains H4350
    Primer: CCI BR2
    Velocity: 2930fps with an ES of 2!

    Just slightly larger than .25moa at 200 yards!



    Yes, that's a three shot group, not two.

    For now, this will be my go-to load for targets and varmints. I'm going to continue to work to find a load that will run closer to 2800 in the interest of preserving barrel life.

    Also, working on development of a hunting load with the 140VLD.

    Here's two groups at about .5moa at 200 yards.

    Bullet: 140VLD
    Powder: RL17 42.5 and 44grains
    Primer: Fed210
    Velocities: 2930 (ES = 22) and 3015 (ES = 15)



    Development for this load will continue as I would like to improve accuracy a bit more.
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      #25  
    Unread 09-11-2010, 09:19 PM
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    Re: My 260 by MCR

    I was shooting 44.5g of H4350, 140g amax, rem cases, cci BR2 2950fps I could never get the group under an inch at 200. I switched to the Fioccie LR primer and my group shrank to 1/4" at 200. I use the BR2 for most everything I shoot but I just could not make her work in the 260. Just a thought
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      #26  
    Unread 09-11-2010, 09:47 PM
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    Re: My 260 by MCR

    Quote:
    Originally Posted by ICANHITHIMMAN View Post
    I was shooting 44.5g of H4350, 140g amax, rem cases, cci BR2 2950fps I could never get the group under an inch at 200. I switched to the Fioccie LR primer and my group shrank to 1/4" at 200. I use the BR2 for most everything I shoot but I just could not make her work in the 260. Just a thought
    Thanks for the tip. I'll file that little nugget away.

    Generally, I find accuracy of the VLDs can be tuned with seating depth.
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      #27  
    Unread 09-12-2010, 07:26 AM
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    Re: My 260 by MCR

    Quote:
    Originally Posted by trebark View Post
    Thanks for the tip. I'll file that little nugget away.

    Generally, I find accuracy of the VLDs can be tuned with seating depth.

    I agree with you on that one VLDs are all about the seating depth
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      #28  
    Unread 10-14-2010, 02:20 PM
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    Re: My 260 by MCR

    A couple of weeks ago I took a long-range shooting class with a couple of buddies. The 260 shooting the 142SMK performed well. Longest shot of the day was 1180 - hit a torso sized target 5 out of 5 times....

    AAR: Training at CVT with Ed Shell - Maryland Shooters
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