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Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 4:16 pm
by snayperskaya
Not all "Black Rifles" are AR's........

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Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 4:22 pm
by meles meles
Pah ! When we want (and we frequently do) to fire 7.62x54R, we'll stick with our Kuova Mosin M28/76 comrade...

Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 4:53 pm
by BamBam
meles meles wrote:
Monolithic upper? We're not entirely sure we understand that. Could you elucidate?
The upper and handguard are one piece, like on a LWRC.
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Or the Colt Canada that them currently use.
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Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 4:54 pm
by meles meles
Is that an advantage ? If so, how so ?

Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 5:29 pm
by breacher
meles meles wrote:Is that an advantage ? If so, how so ?
More rigid I guess.

I have never shot a non-monolithic AR in .308 - the LMT was my first.

It has given me my personal best scores in 200 yard and 300 yard McQueen and a few RBL trophies.

Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 6:07 pm
by Geek
snayperskaya wrote:Not all "Black Rifles" are AR's........

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I agree ;)

I bought mine because it was much cheaper than a Bradley Arms / LanTac. I have not shot a Bradley Arms, however when I tried a LanTac it was very well built. The issue seems to be actually getting hold of them: the LanTac website only indicates .22LR CMMG rifles.

Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 9:04 pm
by safetyfirst
Pm incoming.

Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 9:21 pm
by shugie
Mark's build quality is outstanding, the upper and lower on the rifle he built for me fit together perfectly. And it's accurate, possibly because the bolt does not start to unlock until I pull the charging handle. Unlike the auto version where the bolt movement will start once the gas pressure is high enough to move it. Although I've no idea of where the bullet will be at that point.

Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 9:23 pm
by snayperskaya
meles meles wrote:Pah ! When we want (and we frequently do) to fire 7.62x54R, we'll stick with our Kuova Mosin M28/76 comrade...
Ok.....you don't know what you're missing!.

Re: Educate Badger: straight pull Black Rifles

Posted: Wed Jun 07, 2017 10:00 pm
by Laurie
It puzzles me as to how the 458 SOCOM can be made to fit the M4 / AR-15 platform as it uses a 0.473" rim diameter as per 7.92 Mauser, 308 Win, .30-06 etc. Normally that requires a larger diameter bolt than the smaller AR platform can accommodate and the 'big AR' (ie AR-10) is needed. The largest standard rim size normally used in small ARs is that of the 6.8mm SPC (0.422") and 7.62X39 / Grendel (0.447"), and the latter is known to so thin the bolt lugs out that cracking is common after a few thousands of rounds fired.

The other question I'd ask is what is extraction like in a straight-pull given the lack of gas power? Manual AR-10s in 260 / Creedmoor / 308 are a pain to work because they need so much effort to achieve primary extraction. I know the 458 SOCOM is a low-pressure round compared to them, but it still has a much larger case body to chamber walls contact area than the 223/6.8 cases.