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Cutting Edge 425/13-6.5 Gain twist

 
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  #43  
Old 08-28-2012, 09:37 PM
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Re: Cutting Edge 425/13-6.5 Gain twist

Found what I needed today. Dave Viers had one in stock. Bartlein 13-6.3 33" blank.
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  #44  
Old 08-28-2012, 11:51 PM
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Re: Cutting Edge 425/13-6.5 Gain twist

Kranky, be advised the CE 400 and 425s may not need twists as fast as the barrels I have. If you go down this road you are pretty much stuck with solids. I don't think jacketed bullets can stand the abuse.

The 13-6.3 will work great with the 425 and 400 CE but it will more than likely tear the 350 SMK apart. I just want you to understand what you are dealing with. I feel a little responsible for folks becoming interested in the tight twist barrels and solids.

This sort of thing an expensive hobby but it's a load of fun. It's all still experimental so proceed with this in mind.
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  #45  
Old 08-29-2012, 12:59 AM
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Re: Cutting Edge 425/13-6.5 Gain twist

Quote:
Originally Posted by Augustus View Post
Kranky, be advised the CE 400 and 425s may not need twists as fast as the barrels I have. If you go down this road you are pretty much stuck with solids. I don't think jacketed bullets can stand the abuse.
Do you think the 350 SMK would cope with a straight 8 twist or a 10 to 8 twist at 375/408 imp speeds ?

If not what speeds do you think it would cope with ?
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  #46  
Old 08-29-2012, 07:41 AM
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Re: Cutting Edge 425/13-6.5 Gain twist

No worries Augustus. I have a 11.5 twist right now for the 350 SMK's and 330 Lehigh's. The new barrel is intended for only the more accurate solids shooting past 1500. I admit I got a little excited when you posted your results but dont worry, I wont blame you if I dont get similar results! I doubt that will be the case though.
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  #47  
Old 08-29-2012, 09:14 AM
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Re: Cutting Edge 425/13-6.5 Gain twist

Great, you should see good results.
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  #48  
Old 09-01-2012, 12:50 AM
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Re: Cutting Edge 425/13-6.5 Gain twist

KG, I fired the 350 SMK from a straight 8 twist, I didn't have any failures. Accuracy was around 3/4 Moa. They were pushed to 3200, 3150 seemed to be a moderate load.

I fired more of the 425s today, I had just mounted a new March 3-24 and fired two three shot groups at 100 yds. Both groups were just under .2 Moa. I backed up to 1770. The wind was 5 mph at 3 o'clock. I dialed .3 right and put 16.3 vertical. The target was a little round rock about the size of a volleyball. I was just using it as an aiming point. I powered down to 15 power, set the parallax, and fired one off. After recoil I got back in the field of view to see where the Rd would strike. Much to my surprise the little rock exploded. This rifle is the Lawton 8500 with the Bartlein 6-9 twist. The rifle including the March weighs only around 14 pounds.

I am really liking the March scope, I'll post a review in the optics forum after I have spent a little more time with it.
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  #49  
Old 09-01-2012, 07:05 PM
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Re: Cutting Edge 425/13-6.5 Gain twist

Agustus, is this a different rifle in 375 or is this the same rifle you started this thread with and a different barrel? Or am I just totally confised?

Also may I ask what you are using for a rangefinder and a ballistic program? A cold bore first round hit at 1770 yds on a less than 1/2 moa target is totally awesome. Very impressive.

Thanks
Jeff
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