Weihrauch HW 77K Help.

Hi to the community I am looking for some advise I have just rebuilt a hw77k. Reblacked new internals full overhaul, but would like some advise on how to get the best out of the rifle. I have just ordered a spring sleeve and another piston seal from advise given, I was told helps with the smoothness of the rifle. But would like to know how to get the rifle firing with less recoil and a lot more smoother for competition and hunting purposes. Or would I have to have the piston modded or a custom one. Is it true slightly making the transfer port larger reduces recoil. This is the first springer I have modded so any help would be great fully received thx.
My modded HW77K 
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Hi to cahil I live in the UK buddy so its already at 11.36 with jsb exact 18.13 g in .22 for some reason its got quite abit of recoil. Plus I really want to do everything possible to it via tuning to get the most from the rifle with the forums help. I have tuned my pcp, s obviously its not the same with a springer. Has I'm new to the springer scene, I'm after some advise on how to get the most out of the rifle.
 
With springer questions I have found the English blogs most helpful particularly airgunbbs.com .
On most US blogs I have found that their are quite a few people who are willing to help and advice but unfortunately there are some who happen to have a part time tuning business who don’t always share proper advice as they seem to be paranoid about giving up their secrets. Most of the professional tuners give corect advice but there are a few who don’t tell the you things to be on the lookout for that can cause problems down the road, and you find that out when you rifle fails to perform as intended. So be careful, check with a few sources before you make any unreversable modifications to your rifle. Good luck!!!
 
Thx for the advise Brian great comment buddy I have had a few helpful tips on the UK forums which I have done but for some strange reason cannot seem to get rid of the harsh recoil. I have been told to get a spring guide sleeve to sleeve the piston and buy another new piston seal instead of the standard seals you get from Weihrauch so bought one with molledium impregnated in it. But know there is other techniques you can do with a standard Weihrauch to make it even better. That is the advise I'm looking for. But thx for the comment.
 
I have the the 97kt I am also a novice when it comes to springers. I just wanted to get rid of that twangggg ever time I pull the trigger on my Weihrauch which is Shooting extreamly well after much searching and YouTubeing I contacted Nick Stanning who I think own or at least works for Tinbum. Based on others recommendations I decided to give his pro kit a try, and I plan on lightly polishing the piston along with proper lubrication using Krytox lubricants in areas that can cause dieseling. I haven’t done it yet I want to run at lest 700 pellets though the rifle first. There are othe good tune kits out there Krale whom I purchased my rifle from had the one I order in stock. I also from Vortek received a spare spring and seal Incase I F anything up. 
 
I have heard of folks lightening the piston to reduce recoil-there was an article recently here about a TX200 that the owner had short-stroked and a much lighter piston installed which apparently made a huge difference in the already smooth shot cycle. He also if I remember correctly installed a smaller diameter compression tube. I can't seem to find his post for some reason or I'd put in a link. You folks in the UK are the masters at this sort of modification, so maybe searching the UK forums for info on lighter pistons and/or short stroking the HW77 may help.
Good luck,
John
PS-Here's a link to a video about a gun Nick Gidney modified
https://www.youtube.com/watch?v=biaBNJO3Bxw
 
"JohnL57"I have heard of folks lightening the piston to reduce recoil-there was an article recently here about a TX200 that the owner had short-stroked and a much lighter piston installed which apparently made a huge difference in the already smooth shot cycle. He also if I remember correctly installed a smaller diameter compression tube. I can't seem to find his post for some reason or I'd put in a link. You folks in the UK are the masters at this sort of modification, so maybe searching the UK forums for info on lighter pistons and/or short stroking the HW77 may help.
Good luck,
John
PS-Here's a link to a video about a gun Nick Gidney modified
https://www.youtube.com/watch?v=biaBNJO3Bxw
http://www.airgunnation.com/topic/tx200hc-177-walnut-project-overview/

I think this is the one you are thinking of John?
 
Interesting comments because I never considered my home tuned .177 HW95 shooting at bit over 12.5fpe (7.9 grain dome at 850fps) ft/lbs to be "harsh". Here are a couple 50 yard groups shot while sitting on a bucket resting the gun on cross sticks.......
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My normal groups aren't exactly "PCP quality groups" but accurate enough for my purposes.................
15 out of 20 CPLs through a 3/4" killzone at 50 yards using my home tuned .177 R9 (rebadged HW95) at 14fpe........
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During a field target national match in 2010 I used my HW77k (sold a few years ago) that was tuned to almost 15 fpe (7.9 grain dome at 920fps) and took 4th place at the match.......
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That was the first year that the "hunter class" was added to the national venue and as such that class was combined PCP and piston. There were 17 entries in the hunter class and of the 17 all but 5 were shooting PCPs so I was pleased to get 4th place after the scores were tabulated.

Basically, it does seem that "harsh is in the eyes of the beholder" and I agree that more gun motion requires a more consistent shooting form, however I don't consider my HW95 to be "harsh" and certainly not the "couple pound heavier" HW77k I used to own that was used at the 2010 National match.........
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Out of curosity, what size groups are you able to shoot at say 50 yards (bit under 46 meters) with your HW77k. Does the "harsh shot cycle" seem to mess up your accuracy? I ask because I check the accuracy of any new springer I buy "in factory twang mode" before detuning. The last HW95 I bought a couple years ago shot 7.9 grain pellets at 880fps (about 13.5fpe) an the accuracy pre-home tune was similar to every HW springer I've owned straight from the box after a bore clean and a couple dozen fouling shots, about 1/2"ctc at 30 yards shot "bucket Y sticks" like this.......
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Unless the shot cycle of your HW77k is excessively annoying, perhaps it's already accurate enough for "target and hunting".




 
There is some really good tuners in the UK most of all john bowkett paul short, nick gibney and tony wall but most play there cards to there chest has its took them years to develop and dont want to tell people there trade secrets. Then you get some do. That is how the knowledge gets lost down the years if tuners don't pass it on parts get lost, and guys have to figure all that out again. In my eyes wasted years everything should be passed or we lose part of our own history.