Dosen't work in my 700
I got these for my Rem 700 so I can dryfire and work on bolt manipulation. They fit and feed in the magazine well enough, but only one of the four I received will extract. Dimensionally they're all the same size to the thousandth, so I'm not sure what the issue is. The rifle works fine with all the live and fired brass I've fed it. I tested these in my AR to see if it was the cases, however the rifle and cases function as designed (feed and extract normally)
Good For Dry Fire Only
Bought these for extractor/feed ramp function testing on a 1911 build. The case rim on all of mine were smaller than a loaded .45 round and would not feed and consequently eject properly. Filled the magazine with live rounds and had no problem with extraction or ejection. The metal they are made out of is much softer than the extractor/ejector in your pistol and the case rims will get chewed up pretty bad with repeated use. If you are only looking for dummy rounds for dry fire these are good to go. Not so much for function testing
Only good for break actions
My assumptions were correct about using them in a pump action. The rims chipped after cycling the action twice. The aluminum is hard, so that made them easily broken. I'm sure they would be great for a break action or bolt action, but not a pump. I would recommend for break action guns.
Ejection Issues
Has major issues with the round not ejecting after its first use. I tried using this on my M1A Scout and, as stated, the round either stays chambered or is partially ejected with the round clanging around inside the reciever. Not good.
Smaller than actual 9MM Rounds
In terms of absorbing firing pin impacts, these do just fine and allow for safe and easy trigger practice anywhere. They are fairly durable, but the anodizing finish will get a bit chewed up fairly quickly. My biggest beef is that they are not made to true 9MM luger specs. The cartridge diameter is a tiny bit smaller than actual rounds. This can make them difficult to cycle in some guns as they will have a looser fit against the extractor. Once they get jammed, the hard steel slide and barrel chew up the soft aluminum dummys pretty quickly. Overall, they do their job, but may not feed and extract well in some guns.
