its an AV joke. I was designing my own 20 cal wildcat, very similar to the TAC20, I posted 'is it different enough to have a name".
Missed replied "its Just Another Bloody 20 cal" So I picked JAB20 as the name for a laugh. Its stamped on the barrel and the registry took some convincing that it wasnt a 204 ruger, second time lucky its registered as JAB 20.
Now just to get it to work!!!
I may give up EDIT but as of 6/10 I wont
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- 7mm Rem Mag
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Re: I may give up
hehe ok cool I was doing some searching for JAB and could not find anything! No worries good luck with it 

- trevort
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Re: I may give up EDIT but as of 6/10 I wont
Shane has a solution, JAB 20 returns in November!
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- .22 WMR
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Re: I may give up EDIT but as of 6/10 I wont
I'll take the bait. What does he propose?
- trevort
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Re: I may give up EDIT but as of 6/10 I wont
he reckons the 204 reamer run short has only left 1 thou clearance around the case head, measuring his 20 prac reamer he reckons running that in will give me 3 thou without going all the way in.
He has some loaded rounds, fired brass and the dies. He will test fire it before it comes back to make sure it works
He has some loaded rounds, fired brass and the dies. He will test fire it before it comes back to make sure it works
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Re: I may give up EDIT but as of 6/10 I wont
So I suppose that means that you get all the fun of starting from scratch with load development eh? So is this new config an attempt at superior ballistics or is it just something different? Not having a go or anything just wondering why not 20 prac?
Re: I may give up EDIT but as of 6/10 I wont
Wouldnt be the JAB if it was just a 20 prac 
Hope it comes back in a workable fashion trev

Hope it comes back in a workable fashion trev
- trevort
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Re: I may give up EDIT but as of 6/10 I wont
I wanted the longer neck of the Tac 20 and at the time he didnt have a Tac 20 reamer and I didnt want to buy one.
It wont acheive anything a 20 prac cant do, it a just because I can thing!! Grimo got it in one!
It wont acheive anything a 20 prac cant do, it a just because I can thing!! Grimo got it in one!