keeper96 Posted September 15, 2019 Report Share Posted September 15, 2019 Hello, I’ve got a Brno zkw465 with a small problem. When using Hornady 35gr factory ammo the extraction is really difficult, the bolt lifts fine but takes a fair yank backwards to extract the case. When I tried some other ammo, ww super (assuming Winchester?) the extraction was easy but out of 3 rounds fired I had 1 of the cases split, it could’ve been a duff case but I’m not sure. Does anyone have any ideas where to look? Quote Link to comment Share on other sites More sharing options...
London Best Posted September 15, 2019 Report Share Posted September 15, 2019 Not had this problem, sorry. could be??? throat erosion? Dunno. Quote Link to comment Share on other sites More sharing options...
Robertt Posted September 15, 2019 Report Share Posted September 15, 2019 Have a look into the chamber and throat with a bright torch and check there's nothing untoward. Quote Link to comment Share on other sites More sharing options...
wymberley Posted September 15, 2019 Report Share Posted September 15, 2019 There's a recent thread about this gun where someone mentions something about excess pressure while within the normal charge weight limits. This is the first excess pressure indication that he had. 12 to13 grains has been mentioned so no problem with practical application, but can you rely on your scales? After that it's anybody's guess, but if those Winchester (?) were the original factory loads and have only been shot the once, try loading them. Quote Link to comment Share on other sites More sharing options...
JRDS Posted September 15, 2019 Report Share Posted September 15, 2019 I have a 17H and have hard extraction at times with factory ammo, I wouldn't worry about it. Quote Link to comment Share on other sites More sharing options...
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