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FX impact, Maverick, Crown .177 slug shooting success?

@jaydog: it’s out of my crown and 500mm barrel with carbon sleeve.

Thanks man, I am having a carbon sleeve sent and will be using a tuner as well. Probably have more questions as well. 



Jay




NP, don’t obsess too much over the gun. I alway add carbon sleeve just to eliminate orings as moving parts. 


just so you know, that almost half MOA group i shot I did NOT hold dead center and pull the trigger. The wind was switching back and forth and I was watching the wind indicator and held both left higher and right lower, obviously there certainly was good amount of luck to get a half MOA group out at 100 yards with a 177 airgun hence after the third shot I could not shoot at it again. In swirling wind I can’t get even 1 MOA group if I don’t know the wind drift from different wind directions with my .25 shooting at 3 times the power. Focus on getting 1 hole at 20-30 yards in calm conditions and go shoot in the wind, pass 20 yards environments variables increases exponentially and no tuner or anything you can buy that can help with that.


best “mod” you can buy is a roll of bird tape to stick to your target and along the way if possible then a whole lot of ammo. Think I’ve mentioned this before, if you know your wind then you can take a crappy 2 MOA gun and out shoot someone with MOA gun all day at and past past 100 yards. At 100 yards and farther it’s all on the shooter, the further pass 100 yards the more skill is required. It’s the beauty and fun part of long range shooting, no amount of money can buy you skills. 



What fun is having a tricked out gun but can only shoot MOA groups when there is no wind? At where I live and shoot it’s basically impossible to have windless conditions when I can shoot. 


 
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@qball yep i know what you are talking about. I live in the 5 highest wind state of the USA. Average for November is 8 mph again average. We do get many 15mph+ days. You can watch pellets come out of a valley and hit the wind do a curve ball mid flight you almost laugh at how bad it gets. Thanks again and I just like talking and experimenting. Learned something yesterday by switching moderators between 4 different ones. Big accuracy difference at 25 yards indoors pretty shocked.

I will have questions but again just like improving and chatting. 



Jay
 
Having an indoor range is such a luxury and affords you the ability to get your zero dead nuts on which is extremely important. as far as moderator affecting accuracy goes my take is every moderator is different in mass which changes the harmonics of the barrel. Don’t discount a moderator and think it negatively affects your accuracy without fine tuning with that moderator on, I’m confident with some fine tuning you can get your guns to shoot accurately with any quality moderator. 


My recommendation is to add Ernest’s carbon sleeve with 2part epoxy which helps a lot with harmonics, I don’t like FX carbon liners because they are too tight so any issue with how straight the machined tunnel/bore will be forced on the barrel. Ernest’s liners are just loose enough to allow epoxy to cure with no tension from the liner to the barrel. Just my opinion though. You can go a step either and get the full length carbon tension sleeve for the STX barrel which helps even more but a little less obvious after the liner sleeve. 


Also how much tension you put when tightening the moderator on to the barrel also causes minor harmonics deviations so a lot of people just leave them on and get a longer case. Quite literally anything that change on the gun including taking off and on a moderator could warrant revalidation of your tune and very likely needs some fine tuning and definitely need to re-zero. But if you have both the carbon liner sleeve and carbon barrel tensioner then it’s much less likely. Once you get the gun to shoot dead nuts accurate then definitely leave it alone…..unlike people like me who likes to mess up a good thing.




 
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tor47,

I just checked my(2021) .177 Superior 500mm barrel liner. Mine is a normal right hand twist just like the other calibers.

I just checked my .177 superior liner on my impact, and it doeas go right hand also, (turns clockwise). But the .177 smoothtwist-x goes lefthand (turns anti clockwise). It probably doeas not matter what way it turns though.