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Hw99S My New Tuning Toy ;)


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#61 mattybugeye

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Posted 26 February 2015 - 07:29 am

Hi mate
No john didn't choke the barrel just did a target crown there was very little change in accuracy tbh
Yes I'd do a good diy strip and re lube as makes a big difference sounds daft but really does
You may find your spring has been clipped and not properly seated so you may want to do that too
As for twang mine really wasn't bad I did add a piston sleave but later removed as it was messing with the consistency
Properly lube the spring as that will dampen any twang I was properly impressed with mine
Little fiddly to strip with the little barrel blocks but a punch with a bend soon sorts them strip the trigger and polish up the sears as that helps too
Let us know how you get on
Atb
Matt

#62 Guyver

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Posted 26 February 2015 - 10:54 am

Thanks for the quick reply,
I'll be honest it's the loss of accuracy that makes me think twice. It's hard to quantify the difference!?

I'll definitely tackle a strip down and re lube. I often see people saying to Polish the sears etc... What would you use for this? sorry for the noob question.

And finally... a top hat & spring guide!!? Any worthwhile benefits (cost approx £20) .

Anyways thanks again for your time. Appreciated.

#63 mattybugeye

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Posted 26 February 2015 - 03:38 pm

Yes you might as well stick one in while it's apart if it's a nice fit it will make gun smoother and little Les twang I found

#64 charlie caller

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Posted 27 February 2015 - 02:48 pm

I currently have a tuned 99s in .177, polished piston de-burr, polished sears, tbt tuning kit, piston sleeve, and a proper lube, just fitted a Konceptus moderator, and its kicking out a super consistent 11.6 ftbs, and very smooth for a .177 full power springer, just a nudge in the shoulder, and very quiet, if you want to polish your sears mate get yourself a Dremmel type tool with small polishing mop, and use autosol until they are mirror polished, then a spot of grease or dri-slide ptfe, the trigger on my hw77, after working on it is the best air rifle trigger I have ever used, smooth and breaks like gass, I would go so far as to say it is better than the match trigger on my .22rf Anschutz and that was superb.



#65 Rimfireboy!

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Posted 27 February 2015 - 04:53 pm

They are great little guns. I've got one in .22 but it's standard apart from the trigger. V-mach or similar is on the cards. That said, it's a fairly smooth shooter as it is. I'm well impressed for the price to be honest. I can't seem to put the thing down,lol....

#66 Guyver

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Posted 27 February 2015 - 06:06 pm

Thanks for the Dremmel advice will pick one up. So Charlie did you do a barrel cut or just add the moderator? Will be doing a fair bit of garden plinking and I'm looking to add one. Not really wanting to spend £60 on a slip on silencer (I know it won't effect gun noise) but would you say it's made a worthwhile difference?

Really wanna cut it down but not sure it's worth the gamble as I'm all about accuracy. Well I need all the help I can get 😉

#67 charlie caller

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Posted 27 February 2015 - 06:30 pm

Left the barrel as it is mate, the Konseptus silencer slides back about 3 inches over the barrel, and locates with locktite, and yes it just makes a dull phutt now well worth it.




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