#11
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If you got them on sale, they were cheaper than buying brass. Get a bullet puller and drop the charge .2-.4 grains.
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#12
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Quote:
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#13
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Contact whoever you bought 'em from.
OR the factory and ask what's the solution. Let us know what they say. Good luck.
__________________
George "Gun Control is NOT about guns, it's about CONTROL!!" |
#14
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6-8 weeks if it goes back to cz. sounds like the 25 are loaded to hot as the 20 and 25 are the same bullet diameter so you should have the same neck clearance on both. the only way yo get accurate neck clearance due to brass spring back would be to cast the chamber.
__________________
I post here because it keeps the riffraff away. 'Life's Journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting, Holy sh!t... What a Ride! |
#15
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I did. They thought my bore was dirty.
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#16
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I was messing with the hornet tonight and decided to sand down the firing pin a little to shorten it and see if it made a difference. I shot ten rounds through it right at dark and didn’t have hardly any primer flow at all and not one piercing with the same lot of 25’s I was having the trouble with. It shot really well too ten shots in 3/4” at 100 yards. Maybe I solved the problem.
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#17
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When I first got my Cz527 .17 Hornet I was getting pierced primers with reduced loads using Remington 6 1/2 primers and Hornady 25gr HP's... Took the bolt apart and smoothed the firing pin down and end of problem for my situation.
I inspected the firing pin before polishing it and it looked rough with a burr. Regardless if that was the result of the primers that where getting pierced and maybe welding the end of the pin, after I smoothed it down with 600 grit wet sand paper its fine now. Hope you figure it out. |
#18
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Quote:
The other thing with CZ is they typically have a very tight chamber compared to Savage and Ruger, this will make loads run from a bit to a lot higher pressure in them. It is why you see CZ 17 HHs reaching 3600 FPS out of a 22" barrel vs the 24" test barrel, long before most of us hit max load in published load books. Mine hits 3600 FPS at 9.6 grains of Lil'Gun rather than at 10 grains as Hodgdon publishes. I have seen other CZs hit 3600 at as low as 9.1 grains, which is .6 grains below Hodgdon's start load. Based on that I am not surprised that Hornady factory loads tend to be on the hot side for our guns. Hornady has always had a reputation for pushing the limits on their factory ammo, to get the most speed possible, so I have seen their ammo be too hot in some hunting rifles as well. I have never seen it dangerously too high but past comfortably usable in some guns. |
#19
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Quote:
What's amazing is how well they shoot with chambers that are so over sized. It'll be interesting to see if a tighter spec chamber has any affect on them or if it was just a waste of money having it re-chambered, but they certainly don't come with tight chambers from the factory. |
#20
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Quote:
Last edited by Dean2; 04-28-2018 at 07:21 PM. |
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