Cricket Mini Carbine vs. Brocock Bantam Sniper

@Coldair

Thanks for the suggestion unfortunately I do not know anyone who is into both airgunning and 3d printing lol.

@L.Leon 

It's a known problem that the brocock magazines sometimes have a slight miss alignment issue as reported in a few reviewers. Here is photograph of what I'm talking about. 

1542561699_17127686035bf19fa3dcfbd8.35289340_20181015_185722.jpg


You can see that slight bit of gold which could cause the pellet to be shaved off on one side. Is it a deal breaker, absolutely not, but it's annoying for how expensive the magazines are. 
 
If it is out of warranty then I suggest if that is due to the internal spring not being strong enough then it would need to be disassembled

cleaned and spring tested and if it is too weak then either replace it with a similar one from your hardware store or a simple fix may be

to shorten it a little and using needle nose pliers bend the cut end so the modified shortened spring goes back into its keeper hole and it 

should give you more tension when winding the magazine which may cure your problem. If you shoot heavy weight pellets on a regular basis then you should shorten it a little more so it can give more sprung strength to index heavy pellets reliably. I don't own a Brocock magazine but am using 

the logic as what would be done to a Marauder magazine or an FX magazine to fix the magazine problem indexing properly due to weakened

spring if the loostening the screw trick or cleaning doesn't help.

IF all of that doesn't help then the outer magazine would have to be drilled (overboared) slightly the face that butts up to the leade and the internal cylinders/chambers as well. Then there would be nothing to shave or scuff the pellets. Sort of like using a slightly larger caliber magazine in your gun. I have a custom LW 20 caliber Marauder that uses 22 caliber magazines and it is the most accurate long distance shooting non regulated Marauder that I own and I never had the need to single loaded it.

CA
 
Measured the cylinder side and got 6.06 mm, measured the case side of the mag and got 6.19 mm. In inches I got .238 for the cylinder hole and .245 for the case hole. I can push a pellet straight through without scraping it. Does the shaving of the pellet occur when it’s fed from the mag into the breach? To keep it on topic the Cricket sure looks sweet.