adi786 Posted June 15, 2016 Report Share Posted June 15, 2016 (edited) Hi Guys, Not sure if it happens with some of you, i've got mounts properly done etc on my 17hmr, took it out after a month or so, and ofcourse while taking out my other guns it does get slight knock inside cabinet sometimes, and really slight.. took it out first bang rabbit down 25-30 yard another one was 80 yard missed, another 50 missed, i put a target at 50 yards to check zero, well all messed was 2.5 inches right and 2 inches high at 50 yards so 100 yards would be double.. not sure why lost zero got sidewinder on it.. Edited June 15, 2016 by adi786 Quote Link to comment Share on other sites More sharing options...
kory1986 Posted June 15, 2016 Report Share Posted June 15, 2016 bangs and knocks will put out your zero say in the boot of a car also i no you said your monts are done right may be worth checking the rail the mounts are mounted to to make sure thats not lose also are you using the same ammo that you zeroed with wind can also be a facter. Quote Link to comment Share on other sites More sharing options...
mick miller Posted June 15, 2016 Report Share Posted June 15, 2016 Slight bangs and knocks shouldn't knock your zero out, not if its a half way decent optic. New box of ammunition? Mod on correctly? Last time you cleaned the barrel/ Crown? Consistent trigger pull with tip not crease of finger? Wind? Good idea to check mounts for tightness but you don't need to go cramming down on those Allen screws! Quote Link to comment Share on other sites More sharing options...
adi786 Posted June 15, 2016 Author Report Share Posted June 15, 2016 (edited) there wasn't much wind as well, and yes was a new ammo box using 17grn winchesters, it is mounted to the rail which came with gun am its bloody solid. i was just upset, thought might be scope but as said got hawke sidewinder which i think is a pretty good scopes for 17hmr/rimfires. I did cleaned it last time after use, and this was the first time i took it out after a month or so after cleaning, lats time i cleaned the barrel and also opened the moderator and give it a good clean. The mounts am using are Leapers UTG Quick detach but never took scope off since zeroed. Edited June 15, 2016 by adi786 Quote Link to comment Share on other sites More sharing options...
Hendrix's rifle Posted June 15, 2016 Report Share Posted June 15, 2016 there wasn't much wind as well, and yes was a new ammo box using 17grn winchesters, it is mounted to the rail which came with gun am its bloody solid. i was just upset, thought might be scope but as said got hawke sidewinder which i think is a pretty good scopes for 17hmr/rimfires. I did cleaned it last time after use, and this was the first time i took it out after a month or so after cleaning, lats time i cleaned the barrel and also opened the moderator and give it a good clean. The mounts am using are Leapers UTG Quick detach but never took scope off since zeroed. I always find if I clean mine I have to put 10 or so rounds down it before its back to normal. Could have also been a new box of ammo. When I've cleaned mine I shoot until I get reasonable groups then go bag some bunnys. Hope it helps 👍 Quote Link to comment Share on other sites More sharing options...
rangey Posted June 15, 2016 Report Share Posted June 15, 2016 I always do the same as Hendrix r...after a good clean I always put a few rounds through it to bring it back to zero Quote Link to comment Share on other sites More sharing options...
zx10mike Posted June 15, 2016 Report Share Posted June 15, 2016 either clean every time or don't clean imo as this is what can happen imo .my bet its your cleaning regime causing it .the good news is now you have re zero after a few shots it will probably go back.clean after every outing guys. Quote Link to comment Share on other sites More sharing options...
adi786 Posted June 15, 2016 Author Report Share Posted June 15, 2016 yeh am thinking to go out and just fire few rounds and see if it effects zero again... logically if its due to cleaning as i've re zeroed it, after few rounds it should loose zero again.. as i've adjusted 2 inches low and 2.5 inches left. Quote Link to comment Share on other sites More sharing options...
Redgum Posted June 15, 2016 Report Share Posted June 15, 2016 Found my HMR to be fussy with ammo, cleaning, bad hair day, that's why it went, could not be doing with inconsistency on live quarry, that's my story but many hmr owners find their particular rifles to be consistently accurate. To sum it up, there are bad ones and good ones. Quote Link to comment Share on other sites More sharing options...
Patrol Posted June 16, 2016 Report Share Posted June 16, 2016 check the mod and thread patrol Quote Link to comment Share on other sites More sharing options...
hawkeye Posted June 16, 2016 Report Share Posted June 16, 2016 My HMR has not been cleaned for months and is spot on when the zero moves then it will get a good clean.. After been cleaned i can fire half a box of ammo before it returns to a good zero, then its good to go for another few months.. Quote Link to comment Share on other sites More sharing options...
Savhmr Posted June 16, 2016 Report Share Posted June 16, 2016 Check your stock screws. If they're even slightly loose, that's often enough to affect POI. Cleaning will affect how it groups as copper wash in such a small bore changes pressures = change in velocity but it wont be on one minute and off the next. Sounds more like one of 5 things: Either loose mod, loose scope rings, stock screws or a dodgy scope. Final thing it could be is ammo. You say you've just bought a new batch of ammo. My experience of my own HMR was that I did get significant changes between batches requiring re-zero (which was one of the reasons I got shot of the calibre). I'm assuming that your rifle was zeroed using 17 grain winchester rounds, and you haven't switched from 20g or other 17gr rounds? Quote Link to comment Share on other sites More sharing options...
adi786 Posted June 16, 2016 Author Report Share Posted June 16, 2016 Check your stock screws. If they're even slightly loose, that's often enough to affect POI. Cleaning will affect how it groups as copper wash in such a small bore changes pressures = change in velocity but it wont be on one minute and off the next. Sounds more like one of 5 things: Either loose mod, loose scope rings, stock screws or a dodgy scope. Final thing it could be is ammo. You say you've just bought a new batch of ammo. My experience of my own HMR was that I did get significant changes between batches requiring re-zero (which was one of the reasons I got shot of the calibre). I'm assuming that your rifle was zeroed using 17 grain winchester rounds, and you haven't switched from 20g or other 17gr rounds? i just tried holding barrel and moving i can feel the stock has v little play not sure if thats normal will try to tight it.. its 2 months old though bought new Quote Link to comment Share on other sites More sharing options...
kyska Posted June 16, 2016 Report Share Posted June 16, 2016 I find my hmr fussy no matter what I do, my wmr is far more consistent Quote Link to comment Share on other sites More sharing options...
Savhmr Posted June 16, 2016 Report Share Posted June 16, 2016 i just tried holding barrel and moving i can feel the stock has v little play not sure if thats normal will try to tight it.. its 2 months old though bought new Usually they're fully floated from the chamber end of the barrel and whilst you'll get some flex between fore end and barrel, the retaining screws should be tight enough to prevent the action moving in the stock. If it is moving, that will affect barrel harmonics and zero, so tweak up the screws. They don't have to be super tight, just pinched up. Just a quarter turn can make a difference. Quote Link to comment Share on other sites More sharing options...
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