Furyan Posted November 2, 2016 Report Share Posted November 2, 2016 Hi Finally got round to running in my CZ 17 Hornet today , and after one shot clean for 5 rounds i noticed a strange mark about 5mm up from the case heads, It looks/and feels like a small bump where the case has not gone far enough into the Barrel ?. Ill put some pics of the case`s on later, cant say they would take another load ( These are new once fired factory rounds 20gr Vmax ). Stripped scope of as its away back to main dealers tomorrow ( Gutted ) .Any ideas from you gents. Link to comment Share on other sites More sharing options...
Bangbangman Posted November 2, 2016 Report Share Posted November 2, 2016 Pics!? Link to comment Share on other sites More sharing options...
Furyan Posted November 2, 2016 Author Report Share Posted November 2, 2016 Sorry for the big pic (lol) Link to comment Share on other sites More sharing options...
Bangbangman Posted November 2, 2016 Report Share Posted November 2, 2016 It's not a great pic... but looks a bit suspicious. Are you familiar with pressure signs? How does the primer look? What load are you using? Where did the brass come from (presumably someone else, given that it is once fired and you are running-in) and if it was resized by you, how much did you set the shoulders back? Link to comment Share on other sites More sharing options...
Furyan Posted November 2, 2016 Author Report Share Posted November 2, 2016 Yes i know what pressure signs are these are brand new factory loads 20gr vmax super performance loads , the primer looks fine. Link to comment Share on other sites More sharing options...
kenbro Posted November 3, 2016 Report Share Posted November 3, 2016 Put a short 90 degree bend on the end of a paper clip and feel inside the case up near head. Might be able to feel a groove indicating stretched case. This sometimes shows on the outside as a shiny mark, as in your pic. This happens before case head separation. Ken. Link to comment Share on other sites More sharing options...
Furyan Posted November 3, 2016 Author Report Share Posted November 3, 2016 Thanks Ken The rifle has now gone back and the cases for there inspection. you can see and feel where it had swollen. Link to comment Share on other sites More sharing options...
Malinois Posted November 4, 2016 Report Share Posted November 4, 2016 Is that using reloads or factory ammo? If factory I can post you a pic of a cartridge from my CZ for comparison. Ian Link to comment Share on other sites More sharing options...
Furyan Posted November 4, 2016 Author Report Share Posted November 4, 2016 Factory 20gr vmax cheers Ian Link to comment Share on other sites More sharing options...
Malinois Posted November 4, 2016 Report Share Posted November 4, 2016 Here you go. There are 2 cases as they have come from the factory with different primers. One brass the other nickel. https://www.dropbox.com/s/9wdlwwgg62uf332/1.JPG?dl=0 https://www.dropbox.com/s/0sns08epuxkhm09/2.JPG?dl=0 Ian Link to comment Share on other sites More sharing options...
Furyan Posted November 4, 2016 Author Report Share Posted November 4, 2016 Mine have a bit more of a bulge to that of yours, can you feel anything on those cases ? Cheers Link to comment Share on other sites More sharing options...
Malinois Posted November 4, 2016 Report Share Posted November 4, 2016 No. Nothing. Very smooth. Link to comment Share on other sites More sharing options...
Furyan Posted November 4, 2016 Author Report Share Posted November 4, 2016 Ok cheers Ian Ill keep you updated. Link to comment Share on other sites More sharing options...
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