Author Topic: *Gambo * You say that you're getting variable results with the SMK barrel.....  (Read 254 times)

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Offline 21grains

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 The QB78-79 Barrel's Damage to Rifle'ing at the Crown, from Crowning Blade Alignment Stud ripping into last 1/2" of Rifleing.....The Exact same as Crosman Discovery PCP .22 w/Chicom Barrel ,Untill last Year, Now all 4 Cal. Made in House @ Crosman .177  .20  .22  .25   I'm Very Surprised at the .25 They were always made in New Hampshire by Green Mountain Barrel Co. for Crosman.....Franky

Offline Gambo

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The duff SMK barrels that I've seen have all had a banana bore.

Even though the outside of the barrel was straight, the hole drilled down it's length wasn't.

Those barrels were on QB78's, but all the barrels fitted to their range of PCP rifles have thankfully been excellent. :)

Offline 21grains

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The Disco Barrel's were not Drilled crooked. I Read somewhere the QB 78-79 .22 Barrels were F-up the same as Disco Barrel's Crown Cutter alinement Stud Rip's up last 1/2" of Rifleing ,alltho My .22 Disco built July 2008 238th one Made is Fine and a Shooter.....Franky

Offline Gambo

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Pleased to hear you have a straight shooter Franky.......nothing more frustrating that an inaccurate rifle.