[WRENCHHEAD]

what you can also try is, find a ball bearing sized to where it will fit in the slot where the extractor spring slides into. put the bearing in and then put the extractor spring and plunger. this will act to compress the extractor spring more and it'll keep the extractor pinching tighter on the case lip.

i had the same problem with my VQ barrel, i used a VQ extractor and it never helped till i did this little modification.