lock&load Posted February 28, 2008 Report Share Posted February 28, 2008 hi i have a cz american 16" heavy barrel,wich is driving me mad,i got this about a year ago from rimfire magic south yorkshire,and in all honesty have prob only put 2-300 rounds through i am useing hornaday 17gn ballistic tip have tried some cci 20gn soft point but thecase kept sticking in breech, will shoot 1 shot bull shoot next 2-3 will group low left right ,you get the idea,suggestions on a postcard no seriously i dont no what else to do with it other than try another ammo anyone got any suggestions on the ammo choice. Quote Link to comment Share on other sites More sharing options...
tulkyuk Posted February 28, 2008 Report Share Posted February 28, 2008 Try Different Ammo first, but it is not unusual for a 17hmr to get better grouping untill at least 500 rounds or so have been shot through it. Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 thanks bud any suggestions on wich ammo Quote Link to comment Share on other sites More sharing options...
sandersj89 Posted February 28, 2008 Report Share Posted February 28, 2008 Mine likes Remmington 17gr, will shoot very accurate with those all day long. CCI 20gr where no use at all and had more shoot throughs too. Jerry Quote Link to comment Share on other sites More sharing options...
mosa Posted February 28, 2008 Report Share Posted February 28, 2008 My annie likes Remmington 17gr Accutip-V Boat Tails and ive had no problems with mine. Hope this helps Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 Mine likes Remmington 17gr, will shoot very accurate with those all day long. CCI 20gr where no use at all and had more shoot throughs too. Jerry My annie likes Remmington 17gr Accutip-V Boat Tails and ive had no problems with mine. Hope this helps great,thanks will try have good groups with remmy ammo on 243 will get some at weekend Quote Link to comment Share on other sites More sharing options...
tulkyuk Posted February 28, 2008 Report Share Posted February 28, 2008 My 17 wouldn't shoot good groups with Hornady either, but shot very well with remmis and fedral - winchester ammo is also pretty good and seems to be cheaper than the rest Too!! Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 My 17 wouldn't shoot good groups with Hornady either, but shot very well with remmis and fedral - winchester ammo is also pretty good and seems to be cheaper than the rest Too!! it looks like the posts speek for themselves remmy it is , a big thanks lads Quote Link to comment Share on other sites More sharing options...
Vegeta Posted February 28, 2008 Report Share Posted February 28, 2008 (edited) What are you using as a base for the rifle when shooting targets? Bipod, bag, rest??? EDIT: Also what distance are we talking here and how low and how left. I like to get rid of any shooter errors before I blame the set up Edited February 28, 2008 by Vegeta Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 What are you using as a base for the rifle when shooting targets? Bipod, bag, rest??? EDIT: Also what distance are we talking here and how low and how left. I like to get rid of any shooter errors before I blame the set up off bi pod prone 100yds as i do with all my rifles and the drift can vary upto 3-4 inc either way down left right very rarely high ave even clamped in a bench rest same result tends to settle a little as it warms up for a clip then its off again i have waited till cool have tried continual shooting i am lost my next option was my sthil saw. Quote Link to comment Share on other sites More sharing options...
al4x Posted February 28, 2008 Report Share Posted February 28, 2008 I'd say that was unlikely to be the ammo, more likely some other part of the set up. Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 If you'd bother to look at the sender's account you would see he was banned and has been for a full week, and if you'd also bother to research it you would see that he was a troll on the forums. Who also went by the names of Justjoshing,balaclave,flight-path,merkel,purdey,****you, all of which have been banned. The was nothing to do with this incident- which we did not know about until now- how exactly are we supposed to read private messages?? Are we supposed to be psychics?? I hate the way people jump onto a bandwagon and start spouting out a load of rubbish and I'm looking at you: wy111. You've thrown a lot of **** in this thread and it's all been false, if you dislike here so much you're prepared to post unsubstantiated garbage then pack your bags mate. i did have better joy with the cci but they kept jamming Quote Link to comment Share on other sites More sharing options...
Peter_HMR Posted February 28, 2008 Report Share Posted February 28, 2008 (edited) 3-4 inches is alot and id be looking for my money back tbh. Try without the mod on as well if you have one. To go about fixing it i reckon what you'll need to do is make sure the barrel is floated ie not touching off the stock first. To do that take the barreled action out of the stock and sand the barrel channel with some sand paper until you can put the action back in without the barrel touching and wood (should be able to slide a piece of paper around the barrel the whole way down without it sticking). If that doesnt work and i think your main problem is this is a bad crowning on the end of the barrel. This is a job for a gunsmith or you can buy tools from brownells afaik but hard thing to get right but id say this is your problem. Have a good look to see if you can see and problems (should be completely symetrical) Post a pic up as well. Forgot to mention is this happening after cleaning or when is it happening??? Edited February 28, 2008 by Peter_HMR Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 3-4 inches is alot and id be looking for my money back tbh. Try without the mod on as well if you have one. To go about fixing it i reckon what you'll need to do is make sure the barrel is floated ie not touching off the stock first. To do that take the barreled action out of the stock and sand the barrel channel with some sand paper until you can put the action back in without the barrel touching and wood (should be able to slide a piece of paper around the barrel the whole way down without it sticking). If that doesnt work and i think your main problem is this is a bad crowning on the end of the barrel. This is a job for a gunsmith or you can buy tools from brownells afaik but hard thing to get right but id say this is your problem. Have a good look to see if you can see and problems (should be completely symetrical) Post a pic up as well. Forgot to mention is this happening after cleaning or when is it happening??? its funny you just said that i was going to say i know its a bit late as an after thought but should i try without mod on,it has a sak one on think they are jackson rifle only cheap and i do remember thinking back that when i first got it it looked like it was full or black plastic stands in it when i first used it and stripped the mod,will try without and with my parker hale of my .22 anshultz Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 Forgot to mention is this happening after cleaning or when is it happening??? allways been same from day 1 barrel is free floating and able to resinate freely,only thing never tried is mod and a few other ammos,changed scope mounts bolt face good no blacking on case am sure it is something simple like me Quote Link to comment Share on other sites More sharing options...
duey Posted February 28, 2008 Report Share Posted February 28, 2008 L&L have you cleaned your rifle since you had it, it could be suffering from copper fouling! Ian Quote Link to comment Share on other sites More sharing options...
highseas Posted February 28, 2008 Report Share Posted February 28, 2008 scope/ mounts Quote Link to comment Share on other sites More sharing options...
magman Posted February 28, 2008 Report Share Posted February 28, 2008 Got the same rifle and it drove me nuts to the point of selling it After about 800 rounds it come together If it loses zero now give it a good clean and all,s well Using winchester 17 grn at the moment Hope this helps Quote Link to comment Share on other sites More sharing options...
Peter_HMR Posted February 28, 2008 Report Share Posted February 28, 2008 Id give it a good clean try without the mod (that sak's are good dont try with the parker hale might damage it) and try a few different types of ammo If none of that works its a new crowning job Quote Link to comment Share on other sites More sharing options...
Dead-Eyed Duck Posted February 28, 2008 Report Share Posted February 28, 2008 I used to read posts about 'Shooting A Gun In', and used to wonder what this was all about. I've had various 223, 22-250, 17 Rem, and 'out of the box' (after working out a decent load) I have always managed to get decent groups - which to me is 0.5" or better at 100 yards. and then I bought a 17 hmr....... I bought what I thought was the best - an Annie thumbhole stock. It drove me absolutely bonkers. For what it is worth these are lessons that I have learned from mine:- 1) Try various types of ammo - mine is best with Hornady 17g. It is hopeless with any 20g hp. 2) It is useless for at least 5-10 rounds after cleaning. Do not clean too often; only when accuracy starts to fall off. 3) If you are on a range you must not let the barrel overheat. Take it steady and give it a couple of minutes after each shot. After each shot keep the bolt back to aid cooling. 4) After 300 rounds or so it started to improve and I have now probably shot 1500 rounds or so. 5) Ignore claims of 0.25" groups. From my own experience and what I have read you may on occasion get 0.5", but 0.75" is the norm. 6) Don't even bother to try and get decent groups with any kind of wind - the bullet is too light and badly affected by wind. Hope that this helps Don Quote Link to comment Share on other sites More sharing options...
deadeye ive Posted February 28, 2008 Report Share Posted February 28, 2008 I would say the normal average 100 yd group is 1" though .......I have had tighter but can count them on 2 hands . 3-4" group is an indication of something wrong not the ammo and previous posters are correct with checking the scope ,mounts and moderator .In fact is there damage to one side of the exit hole of the mod .A simple DIY recrowning without using a lathe is a marble and silicon carbide paste . Have you a decent close up pic of the crown btw My CZ came close to being wrapped around a fence post many a time in it's early days but now it's an absolute tack driver and I ain't touching nowt until that situation changes . Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 L&L have you cleaned your rifle since you had it, it could be suffering from copper fouling! Ian scope/ mounts it has been cleaned barrel and silencer the lot and have changed scopes and mounts this is just one of those things some of you have had too it seems, but i must say hand on heart some great advice and i will be trying all aspects of your suggestions the crown appears fine i took it to local gun shop a bit back and they said seemed finetoo. thanks all Quote Link to comment Share on other sites More sharing options...
Pagey Posted February 28, 2008 Report Share Posted February 28, 2008 I've been suffering exactly the same problems with my CZ 17HMR 16" Varmint, not been getting anythin better than 3-4" groups, been using remmy accutips, same as i've always used in my 22-250, but today have floated barrel, taken everything apart and put back together, making sure everything was nice and tight. Used federal ammo this afternoon and its now achieving 1" groups on average. I've now put approx 2-300 rounds through it, think its slowly getting better though.. perhaps it could just be a case of getting it "run in"..? Quote Link to comment Share on other sites More sharing options...
plinker Posted February 28, 2008 Report Share Posted February 28, 2008 the cz i had was excatly the same i tried changing every bit of the rig, floated the barrel, trigger kit but it would not hold a group ,in the end i gave up sold it brought a hw60 and that shoots like a dream, funny thing was a mate brought a cz the same time as mine and turned out his needed re-crowning, i dont like to rubbish czs because i know they build some great rifles i really like there 223 but a SMALL percentage of the hmr have problems. Quote Link to comment Share on other sites More sharing options...
lock&load Posted February 28, 2008 Author Report Share Posted February 28, 2008 glad to see i am not the only one,but by the same token i am sorry to hear so meny of you have had problems with this rifle. russ Quote Link to comment Share on other sites More sharing options...
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