Tuning Tight Alpha Wolf magazine

I have two barrel kits for my Delta Wolf. The .25 magazine would fit over either barrel. The .177 magazine would not. Even with the barrels removed, the slot in the .177 magazine would not fit over the barrel. So it seems to be an issue with the width of the slot in some of the .177 magazines. I measured both barrel and .177 magazine and there was a slight interference fit. It should be a slight clearance. I used a pocket knife to scrape all anodizing out of the perimeter of the slot and now it fits.
 
My issue may not be relevant, but I had a new Alpha Wolf where the mag that came in the case simply would not fit the housing / breach. It would slide in a few mm and simply jam.

I took it back to the dealer who took a fine gauge micrometer to the breach housing and said it was too small. To the eye, it all looked OK. The build seemed OK, the shut lines were OK. But from his micrometer measurements it was very very fractionaly small on the internal measurements. He replaced the gun and I had no further issue.

I didn't hear back or checked, so I assume I just had a 'friday' gun... I still wonder how they took the QA power readings...
 
  • Like
Reactions: Stone02
An update to my tight-fitting magazine problem.



I used a micrometer on the breech of the rifle and couldn’t find any obvious size differences between the right and left hand side. The same for the mags. I couldn’t really find any size differences. I would measure a few times and get slightly different numbers each time.



I bought two magazines directly from Daystate and they didn’t fit. They were gracious enough to send me out two different mags that they said they would double check. The two mags they sent fit perfectly.



I ordered two more mags from AOA and they didn’t fit. AOA replaced them when I returned the defective ones and one fit fine and the other was too tight. I didn’t want to keep sending them back, so I worked on the tight one with 400 and 600 grit wet/dry sandpaper after putting Dykem on them to find the high spots. After sanding I polished them with a leather wheel that held green polishing compound. It works fine now. I have enclosed pictures of the worked-on magazine.



If it wasn’t such a pain, I might have sent the gun back to AOA. Two reasons I didn’t: I have 6 magazines that work fine, along with a PR-S single shot loader and a high-capacity mag from MidwestEliteAirguns. Second, my Alpha Wolf consistenty shoots a full mag of Daystate .177 Howlers(12.6grain) into 1/4 inch diameter target holes all day. It doesn’t shoot one ragged hole, it shoots 1 HOLE, period. I am only shooting at 20 yards, since that is my backyard limit. I have a great Sinclair rest that helps out a lot and my trigger pull measures at 3.2 ounces.



There has been talk that the anodizing on some magazines is a little thick but I don’t know for sure if that is the problem. I do know that I did not have to take off much material to get them to work. If I order more magazines and they don’t fit, I probably will have to send the rifle back. I shouldn’t have this kind of a problem on a $3,500 gun.

View attachment Magazine repair.pdf
 
After reading your update, it appears that the tolerances of the breach and magazines are so acute and likely variable that it's causing the issues we've had.

It's more plausible for the magazine to be the issue, but that's just a guess as the the mag I had on the unserviceable gun worked immediately in the new one.

But I agree, it's not great to have potential issues with both the breach and magazine tolerances. Especially as each gun is meant to be tested before it leaves the factory and there's no way mine would have worked.