Click Here for AirGunHome.com Main Page AirGunHome.com: THE Worldwide Airgun Forum

Air Gun Home Forum Index » Rifles » QB Comes Good    View previous topic :: View next topic  QB Comes Good   Posted: Wed Mar 25, 2009 12:04 pm Alstone Moderator & Site Supporter Joined: 01 Mar 2007 Posts: 4139 Location: Linconshire, ENGLAND Here’s the Latest incarnation of my QB-78, I bought it two years ago and to be honest I also thought it was a heap of junk, It was as rough as a badgers ar$e, and just sprayed pellets anywhere it fancied, so after spending a lot of time cleaning, polishing and chopping 3 inches off the barrel to get rid of bad rifling, things improved and it started to group pellets. Just over a year ago I bought a TX200HC and this took my mind off the QB, in fact so much so that I hardly used it over the last year, at one point in an effort to improve it I bought a new barrel and valve tube from Archer Air Guns in the States, but all the new barrel managed to do was an impression of a Gatling gun, and spray pellets in any direction, with closer examination of the new barrel I found out that the hole didn’t come out in the centre of the barrel, but toward the side, and the scope run out of adjustment trying to align it. So it was put away and it was back to the TX. Anyway over the winter looking for something to do I dug it out and striped it down, went through everything and added a power adjuster and a covered breach also I put back the old barrel. I had an old Hawke Air max scope that had a broken reticule so I sent it back to Hawke for exchange under their 10 year guarantee and low and behold by return of post a brand spanking new scope arrived, this was added to the QB and testing began. Thing’s were no better apart from the noise as I had increased the power, so to fit a new silencer I threaded the barrel but before doing this I chopped off an inch where a grub screw had damaged it, finished it off and put the silencer on, and back to testing again, Well I couldn’t believe it hole on hole at 20m, so two years down the line and it finally came good and all it needed was another inch off the barrel! Al _________________   Posted: Wed Mar 25, 2009 12:08 pm broommaster2000 Moderator Joined: 10 Mar 2007 Posts: 5714 Location: City of Groningen, Groningen, The Netherlands The thing is, Al, I might need to get one myself. I'm going teach a few of my friends the basics of shooting, as some of those guys were pretty interested in this hobby. I'd get the deluxe version though. Still rought, but has some shiney parts. Then maybe make a stock for it. I got trouble channeling the thing I want. I want a BSA Lightning XL, a new PC, travel, and a QB78... _________________ BIG GAP   Posted: Wed Mar 25, 2009 12:45 pm Alstone Moderator & Site Supporter Joined: 01 Mar 2007 Posts: 4139 Location: Linconshire, ENGLAND It will have to be the lightning XL then. Al _________________   Posted: Wed Mar 25, 2009 3:36 pm jonathan Member Joined: 27 Dec 2008 Posts: 75 Location: Saint John NB Power adjuster???? Could you post more details and pictures please? Im guessing your talking about the knob just under the rear of the breech.... _________________ Custom Bulked QB78,Webley Nemesis,Crosman 1100 Trapmaster,Sheridan Model C9,Dianna 24   Posted: Wed Mar 25, 2009 5:31 pm Alstone Moderator & Site Supporter Joined: 01 Mar 2007 Posts: 4139 Location: Linconshire, ENGLAND jonathan wrote: Power adjuster???? Could you post more details and pictures please? Im guessing your talking about the knob just under the rear of the breech.... You got me going there for a minute Jonathan, I thought I hadn't posted it. Anyway have a look here: http://airgunhome.com/agforum/viewtopic.php?t=1586&highlight=power+adjuster I have another mod to do on it yet which involves locking the adjuster. Al _________________   Posted: Wed Mar 25, 2009 6:02 pm jonathan Member Joined: 27 Dec 2008 Posts: 75 Location: Saint John NB Ahh, I think I remember that post now........bad memory How much variance does that give you in velocity? I am very close to running my QB on HPA and want to be able to go from moderate to "Monster" when I feel like it _________________ Custom Bulked QB78,Webley Nemesis,Crosman 1100 Trapmaster,Sheridan Model C9,Dianna 24   Posted: Wed Mar 25, 2009 8:19 pm Alstone Moderator & Site Supporter Joined: 01 Mar 2007 Posts: 4139 Location: Linconshire, ENGLAND jonathan wrote: Ahh, I think I remember that post now........bad memory How much variance does that give you in velocity? I am very close to running my QB on HPA and want to be able to go from moderate to "Monster" when I feel like it Unfortunately with shorting the barrel I have more gas than barrel, so the adjuster is handy to cut down excess gas and give more good shots, it doesn’t appear to increase the power above the maximum that I had before. I think you would have to get the maximum output by improving the valve and use the adjuster to cut it down to what you require. My QB outputs maximum of 750fps but using the adjuster I can cut it down to about 350-400 fps, this is depending upon the air temperature. Al _________________   Posted: Wed Apr 01, 2009 7:32 am Pie Man Member Joined: 13 May 2008 Posts: 56 Hey Broom I am going to get a lightning xl, what cal do you want yours in?   Posted: Tue Apr 28, 2009 3:29 pm broommaster2000 Moderator Joined: 10 Mar 2007 Posts: 5714 Location: City of Groningen, Groningen, The Netherlands I'd want mine in .22, but I went ahead and got me a .177 QB78. _________________ BIG GAP QB Comes Good     Air Gun Home Forum Index » Rifles You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum All times are GMT - 5 Hours   Page 1 of 1   All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First  Select a forum Main Forums----------------AirGunHome Q&AGeneral Air Gun Questions and TopicsPicture GalleryTarget Shooting: Casual, Fun and CompetitionHunting, Pest Control, Varminting People/Events/Airgun Issue Discussion----------------Introduce YourselfThe BS TopicClubs/Events/Regional/Political Airgun Issues Maintenance, Modification and Reviews----------------RiflesPistolsAntique, Collector and Novelty AirgunsBB GunsPellets/AmmoOpticsAccessoriesAirgun Smithing Buy, Sell or Trade Forums----------------For SaleWant to Buy   Note: If you are seeing "Please enter your username and password to log in." Your browser cookies have been reset or you need to register to access the topic in question. Use the 'Register' button near the top left of this page. Click Here for AirGunHome.com Main Page Powered by phpBB © 2001-2004 phpBB Group Partial Styling Supplied by Vjacheslav Trushkin Themes Database.