BSA bent barrel

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   To me it doesn't look look like the barrel itself is bent, rather poor matching of the breech mating faces allowing the barrel to rise above the cylinder centreline.

Not easy to fix, and having rebuilt a Meteor roughly 12months ago, they're junk and not worth wasting time on (IMHO).  The engineering is appallingly bad.  

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KiwiTR6 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 04 Nov 2022 Location: North Island Status: Online Posts: 450	Post Options Post Reply Quote KiwiTR6 Report Post Thanks(0) Quote Reply Posted: 03 Jun 2026 at 10:49pm
	To me it doesn't look look like the barrel itself is bent, rather poor matching of the breech mating faces allowing the barrel to rise above the cylinder centreline. Not easy to fix, and having rebuilt a Meteor roughly 12months ago, they're junk and not worth wasting time on (IMHO). The engineering is appallingly bad.
	Daystate Red Wolf .22 FX Dreamline .22 Diana Outlaw .22 HW98 .177 HW30 .177 FWB 124 .177 Diana 35 .177 Diana 340 N-Tec .177 Diana 34 EMS .177 Diana Mod 25 .177 Diana Two Forty .177 Crosman 2240 .22

kruzaroad Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 03 Jul 2022 Location: Hastings 4 now Status: Offline Posts: 3043	Post Options Post Reply Quote kruzaroad Report Post Thanks(0) Quote Reply Posted: 04 Jun 2026 at 1:09pm
	Can you put strait edge against the barrel from the the spring cylinder just past where the barrel closes against it and along the barrel so we can see exactly where the bend is happening? Use a contrasting back ground like white under it and focus the pic till only where the barrel is strait. The strait part ( apart from the first couple of cm is of no relevent need to the picture. Maybe rest the ph on a couple blocks of wood so its a steady and a sharp photo.

J-S Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Senior Member Joined: 20 Oct 2014 Location: Auckland Status: Offline Posts: 512	Post Options Post Reply Quote J-S Report Post Thanks(0) Quote Reply Posted: 04 Jun 2026 at 3:48pm
	Im thinking its the whole breech block and barrel thats pointing upwards... I dont think the barrel is bent.. I would probably try shimming the scope rings. if you have open sights they are usually on the breech block so doesnt matter if its not straight as front and rear are both on the same angled line... I had a BSA lightning that had an upwards barrel - shimmed front mount with some milk bottle strips and I could get it zeroed ok at 25 yards
	J S Airguns Air Arms TX200('s) Theoben Sirocco HW77 FWB 300s Webley Patriot One or two others... Current projects: Too many..

muzza Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 12 Oct 2025 Location: Taranaki Status: Offline Posts: 49	Post Options Post Reply Quote muzza Report Post Thanks(0) Quote Reply Posted: 19 hours 20 minutes ago at 9:40pm
	was there an outcome to this situation ?
	old enough to know better

kruzaroad Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 03 Jul 2022 Location: Hastings 4 now Status: Offline Posts: 3043	Post Options Post Reply Quote kruzaroad Report Post Thanks(0) Quote Reply Posted: 18 hours 3 minutes ago at 10:57pm
	Im guessing that someone who joined 2 days before, said he loved old bsa until gamo took them over, then got told they were junk and not worth working on decided to skip the site. He wasn't looking for opinion he was looking for help. Wouldn't blame him. People don't want guns they enjoy rubbished.

muzza Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 12 Oct 2025 Location: Taranaki Status: Offline Posts: 49	Post Options Post Reply Quote muzza Report Post Thanks(0) Quote Reply Posted: 7 hours 48 minutes ago at 9:12am
	Shame - I had hoped there was a good outcome
	old enough to know better

BC_Clark Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 16 Feb 2024 Location: Auckland Status: Offline Posts: 20	Post Options Post Reply Quote BC_Clark Report Post Thanks(0) Quote Reply Posted: 5 hours 4 minutes ago at 11:56am
	Don't overthink the barrel straightening. It doesn't need to be surgically straight from end to end. It only needs to have the muzzle approximately where the sights / scope rail align usefully. Take advantage of a small bend near the breech producing a large deflection at the muzzle. It almost certainly bent at the breech end to begin with, due to the physics. So you will likely be reversing the bend where it occurred if you only clamp the breech end and pull it back down.

-Ec Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 02 Sep 2025 Location: Matamau Status: Offline Posts: 221	Post Options Post Reply Quote -Ec Report Post Thanks(0) Quote Reply Posted: 2 hours 22 minutes ago at 2:38pm
	I'm also interested to see how this worked out. In my early teens, around the time this gun was manufactured, a good friend had a meteor and it was the first air gun I regularly used. I have fond memories of scaring the local sparrow population with it. I recently purchased an early super meteor of a similar age from Ron Young. Mine is a bit rough looking but having been serviced by Ron does shoot smoothly. I ran it over my crony this afternoon and it is putting out 8.5 fpe at the muzzle with 36 fps between the highest to lowest speed over 10 shots. I'm looking forward to some fine weather so I can see if I can shoot my one any better than the one my friend had! Edited by -Ec - 30 minutes ago at 3:48pm
	Regards, -Ec