Are the barrels in the AR2078 any different than the barrels in the QB78s other than the sights and caliber? Better quality? Choked?
I acquired a leaking, non working, 22cal, AR2078 rifle because it had a thumb hole stock for less than the price of the stock alone. The barrel is in good condition, and I'm wondering if I should use it in my QB78?
Actually the rifle is OK it just needs seals, it has a front sight but no rear sight. I was thinking of installing seals and using it. Does anybody have a rear sight sitting in their parts drawer they want to get rid of? I also need the flat adapter plate that goes between the sight and the breech.
Thanks for any help/suggestions you can give me.
get a seal kit and a shorter stock bolt to fit the stock you want to use, the AR barrels are choked and can be more accutrate than the 78's, I have one that is in a 78 stock and is running at 800 fps in .22 and does 1/2 inch groups off hand..........just have to have a good barrel to start with..
..haven't had near the number of QB barrels pass though that he has, but do think there is a slight choke in the AR2078 barrels. At least, as all barrels are like playing the lottery, the odds of getting a good shooting barrel seem higher for an AR barrel (but i will say some of the 78 barrels are fine shooters...a good barrel is a good barrel, regardless of maker).
..your barrel band may not, but the barrel fits onto the breech just fine.
(But sometimes the standard plastic QB78 barrel band has enough "give" to it to fit over the 1mm fatter barrel....I'd still order a 15mm (Qb 78D or AR 2078) metal barrel band to go with the fatter tube.)
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