Evil Elvis Posted October 31, 2009 Report Share Posted October 31, 2009 (edited) :blink: I have finally got my hmr shooting straight after destroying another sirrocco mod!!! The edgar brothers gave me one with stainless baffles in it. Same hole group at 50 yards, 1" at 100 and I am shaking like elmo today(not well) The question is, the second mod was once again welded on by gunk after 50 rounds...............I reset the scope, stripped the gun right down and scrubbed everything. Took of the stock to check for grit etc and cleaned it. Now its shooting straight again I want it to stay that way.......if i unscrew the mod after each session will it affect my zero.....I dont think it will but Im a bit paranoid now!! Edited October 31, 2009 by Evil Elvis Quote Link to comment Share on other sites More sharing options...
Breastman Posted October 31, 2009 Report Share Posted October 31, 2009 I've never experienced a shift in zero just by taking the mod off then putting it back on (.22, .17HMR, .223 or .308). Think you've just got a bit spooked by your previous experience! Mark Quote Link to comment Share on other sites More sharing options...
cooter Posted October 31, 2009 Report Share Posted October 31, 2009 You need to remove the mod after every session, and clean the crown, as the unburnt powder and other material that build up in it are very corrosive. Removing the mod and replacing it should have no impact on the zero, but remove the mod and shoot it (watch out for the noise) and your zero will be different. There are a number of thought patterns on how often to clean the HMR. I have found that if I use a bit of cloth, and give it a pull through after 100 rounds or so, it holds zero really well. If I use a bore snake it goes to sh#t, and it takes 20 rounds to get it back on zero. I use a DM80 mod, and clean it after every session. It is very easy to take a part, and after several thousand rounds it is still 100%. HTH Cooter :blink: Quote Link to comment Share on other sites More sharing options...
Evil Elvis Posted October 31, 2009 Author Report Share Posted October 31, 2009 Guess i need to lay out for a better mod. :blink: Quote Link to comment Share on other sites More sharing options...
cooter Posted October 31, 2009 Report Share Posted October 31, 2009 Either a Wildcat Whisper or a DM80. They are both calibre specific. Out of the two the DM80 is cheaper, and from personal experience it is very good, and it will last the distance. Cooter :blink: Quote Link to comment Share on other sites More sharing options...
garyb Posted October 31, 2009 Report Share Posted October 31, 2009 Removing the mod should NEVER alter the POI... as it's good practice to remove the mod from the rifle, when not in use. ^ Harfordwmj take note ^ My 223 has no POI shift, between sessions. Quote Link to comment Share on other sites More sharing options...
Evil Elvis Posted October 31, 2009 Author Report Share Posted October 31, 2009 Right off? .22lr too? :blink: Quote Link to comment Share on other sites More sharing options...
garyb Posted October 31, 2009 Report Share Posted October 31, 2009 It's probably not so important in rimfire rifles Bazza Anyway my 22 isnt screwcut :blink: Quote Link to comment Share on other sites More sharing options...
Evil Elvis Posted October 31, 2009 Author Report Share Posted October 31, 2009 Id say it is in hmr it produces so much waste. :blink: Quote Link to comment Share on other sites More sharing options...
badshot Posted November 2, 2009 Report Share Posted November 2, 2009 HMR is VERY dirty in the mod and also VERY wet. There is a considerable build up of condensation inside my whisper after a zeroing session due to the hot air cooling etc. I now take it off every time but only clean it every 100 or so rounds. Quote Link to comment Share on other sites More sharing options...
George1990 Posted November 2, 2009 Report Share Posted November 2, 2009 I've started taking mine off (Sirocco) after each time and cleaning the crown every time. The amount of poo that comes off after just a few rounds... Quote Link to comment Share on other sites More sharing options...
cleaner4hire Posted November 4, 2009 Report Share Posted November 4, 2009 i found the scirroco was very good at catching all the muck from my HMR, it certainly needed cleaning a hell of a lot more than the DM80 (which I never had to clean) I only fit my mods when shooting, afterwards they have a quick squirt of oil/wd40 and are dried out on the radiator then put away. Quote Link to comment Share on other sites More sharing options...
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