Eley HP Subs

[Meece 1,957]

It's a  odd situation where grease, which is there as a lubricant is causing a malfunction in as little as 20 to 30 rounds. A separate thought..... seeing as the case is that tight in the chamber  which needed picking out with a screwdriver, is this a situation of powder blowback. ?  whatever it is, it's a nuisance for you and not something that can be resolved easily.   An other thing to do  if you want to explicitly use this ammo would be to have a short rod and brush in the pocket and rod the chamber every 15 rounds or so.  What about polishing the chamber with the brush and something like Brasso or solvol auto solve. Pretty much all bases covered.  I hate being  beaten by things like this but sometimes there don't  seem to be an answer.

[Sausagedog 7,381]

In warm weather the lube stays soft in the chamber. In cooler weather  the firing heats the thin brass. That melts the lube for a split second. The cold chamber freezes the lube again and forms a weak bond to the case. The usually weak extractors on 22's cant cope with that bond.

We live in a temperate climate so eley have traditionally  stuck with their wet (relatively) lubrication.

In colder climes manufacturers stick to beeswax mixtures. It can be applied thinner and stays on the bullet only during cycling.

That's how I understand it.