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My 260 by MCR

 
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  #22  
Old 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  
Old 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  
Old 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  
Old 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  
Old 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  
Old 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  
Old 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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