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Check out the latest real nice report from Flatlander on his no-turn long distance 6BR Wildcat, the 6 UBL Improved. Link on homepage
Even with no-turn necks, he got great accuracy with Varget, moly 107 smks as well as Berger and Lapua 105s. Here's the cartridge:
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Riverine
You know the more I look at the 6 Improved wildcats,other than the 6 BRX) they all look pretty much the same. Nice photo though--makes it clear how you fire-form with the false shoulder.
I read the article and I do like the idea of not turning necks. I suspect, when you shorten the necks this much, it's a good idea keep the neck-walls reasonably thick to give adequate tension on those long bullets.
Lot of work for 140 fps or so though. I checked the MT 1000yd club results, and this mounth Kyle Brown beat all the Dashers with his standard cartridge.
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flatlander
This is my 1st BR, so I don't have a stock 6BR to compare velocity and accuracy with. To begin with, I wasn't real thrilled with the idea of loosing 3-4 hundred rounds of Krieger barrel life forming cases. But the last time I did some fireforming, in near calm conditions at 600, 10rds. with S107s at 2898fps shot a 4.3" group. While I might not want to shoot FF rounds in a 600yd. BR match, this sort of accuracy will be good enough to shoot prone 600yd. any/any matches, where the 10-ring is 12" in diameter. Getting good accuracy while fireforming takes the sting out of having to do it in the first place.
Check out the latest real nice report from Flatlander on his no-turn long distance 6BR Wildcat, the 6 UBL Improved. Link on homepage
Even with no-turn necks, he got great accuracy with Varget, moly 107 smks as well as Berger and Lapua 105s. Here's the cartridge:
- - -
Riverine
You know the more I look at the 6 Improved wildcats,other than the 6 BRX) they all look pretty much the same. Nice photo though--makes it clear how you fire-form with the false shoulder.
I read the article and I do like the idea of not turning necks. I suspect, when you shorten the necks this much, it's a good idea keep the neck-walls reasonably thick to give adequate tension on those long bullets.
Lot of work for 140 fps or so though. I checked the MT 1000yd club results, and this mounth Kyle Brown beat all the Dashers with his standard cartridge.
- - -
flatlander
This is my 1st BR, so I don't have a stock 6BR to compare velocity and accuracy with. To begin with, I wasn't real thrilled with the idea of loosing 3-4 hundred rounds of Krieger barrel life forming cases. But the last time I did some fireforming, in near calm conditions at 600, 10rds. with S107s at 2898fps shot a 4.3" group. While I might not want to shoot FF rounds in a 600yd. BR match, this sort of accuracy will be good enough to shoot prone 600yd. any/any matches, where the 10-ring is 12" in diameter. Getting good accuracy while fireforming takes the sting out of having to do it in the first place.
