BSA Superten magazine’s

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Birchy

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My son was recently given a BSA Superten mk1 by a client that he has done alot of work for.
He said the three magazines which came with it are faulty thinking that the rubber sealing bands are the problem.
I said I’d ask on here for advice.
My wife would really like to buy him a couple for Christmas as an obvious improvement on the usual token stuff !
My questions are :
Can the seals be replaced ?
Are there better makes of magazine which would be an obvious way to go ?
Here are photo’s of one of the faulty ones ; ( which incidentally hadn’t been used for over 10 years as the original owner is now over 90 )
 

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Yes the orings can be replaced.
Take care taking the magazines apart.

Modern magazines can be altered to fit.
 
I got a .177 3d printed replacement of the bay bean using it for 3 or so months now. with 4 or 5 tins through it with no problems or accuracy issue. it's also got a lock open after last shot I think it was about 23 quid . no 25,99,
 
Cracking mags by an AGF member
D

Thread 'dm3d-designs 3D printed Magazines and Airgun Accessories'

Hi All!

I have been selling 3D printed magazines for a variety of airguns for around a year on Ebay. Quite a few members have bought from me and I've had great feedback. My best seller being a BSA/Gamo multishot magazine, but I also sell BSA CLX, FX Dreamline and SMK CP2 magazines, as well as smooth front sights, barrel bands and picatinny rails for the CP2/Diana chaser style airguns.

My new website dm3d-designs.co.uk has just launched and I would like to offer all AGF members a 10% discount using code AGF10OFF.

If anyone has any questions you can contact me on the forum...
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First up - what is the fault? The o rings hold pellets in place but these can also require re-winding a bit to ensure enough tension is present to rotate a mag full of pellets.

Personally found of all variants that the ones you have there in the pics with the ally cylinders are the most reliable 👍🏽

The small flat head screw in the centre unscrews, so keep some pressure on the front plate when unscrewing. Remove it. Lift the front plate up and remove the cylinder from the spindle, taking care to make a rough note of how many rotations of preload it has due to the spring beneath being attached to both sides and pre-wound. No lethal amount of tension in there, just easy to have a 'ping-fuggit' moment.

Normal o rings of the appropriate size are fine, can't recall dimensions but I'm sure you can measure the one remaining to find it.

Worth a dust off inside the mag casing, and seems to recall @rancidtom recommending pencil lead to lubricate the moving parts, but could be massively wrong 😂

There are a few versions of each mag type, and some I've had include separate 'side pieces' to the mag housing, some are cast as one piece with the back plate. All with have the tick-tock (forgotten the proper word) lever in them, and that just pivots on a nubbin on the back plate.

Super simple job, five minutes to do but reassembly can be tricky to poke the spring back in locating holes both sides and then wind up for tension whilst also sandwiching back together. Octopus money right there. Second one will be easy once you've practiced though 👍🏽

If you need to buy new plastic BSA / Gamo / aftermarket ones, they all (aside from precision ballistics ones which are immense quality and have a recess cast in already) need a Dremel to nick out the recess required for the indexing arm on the gun to move freely on cocking.
 
Get new magazine. Put it in the rifle.
Allow the indexing pin to touch the magazine a few times by working the bolt, to leave a witness mark on the magazine outer case.
Drill the witness mark through the case only with a 3mm dril.

Job done.
 
Thanks for the ( beneficial ) replies.
I will seek the specific answers to my queries elsewhere 👍
 
Pretty sure everything you asked has been covered 🤷🏻‍♂️
What a weird way to say thank you.
 
The BSA mag takes 25mm x 1.5mm O rings, Shore Hardness 75.
Don't oil them or use spray lubes on the magazine, strip the mag and rub all the wearing surfaces with pencil lead then re-assemble. Using oil or grease will cause dust to stick and turn to grinding paste wearing out the mag rather than lubricating it.
 
Late to the thread, but you can also take the indexing lever out of the rifle without too much difficulty. Once it's out, you can use the newer BSA Ultra and R10 magazines without modification. You won't be able to use the older magazines, but that's no great loss due to their unreliability.

I did this with my Superten, and they work flawlessly in it.
 
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