Canadian Airgun Forum

The #1 Community for Airguns in Canada!
It is currently Thu Mar 28, 2024 11:57 pm

All times are UTC - 5 hours


The Canadian Airgun Forums are a place for people to discuss and learn about airguns and the airgunning sport in Canada. There are lots of discussions about airguns, airgun accessories, reviews, modification and repair information, airgun events, field target and free classifieds!

 

You need to register before you can post: click the register link to proceed. Before you register, please read the forum rules. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own pictures, and access many other special features. Registration is fast, simple, and absolutely free! To start viewing messages, select the forum that you want to visit from the selection below.







Post new topic Reply to topic  [ 11 posts ] 
Author Message
 Post subject: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 10:32 am 
Offline

Joined: Wed Dec 05, 2012 6:52 pm
Posts: 140
Introducing my 53k special ...495 fps ..vibration free and reduced recoil....a great ratting tool for my pocket or tackie box.... accuracy is 20mm at 10 yards ...


Attachments:
File comment: Ultimate sport pistol
IMG_356.jpg
IMG_356.jpg [ 110 KiB | Viewed 945 times ]
Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 10:39 am 
Offline
User avatar

Joined: Fri Sep 23, 2005 2:29 pm
Posts: 6297
Location: Okanagan,BC
Isn't that stock about 400 fps?

How did you get it to shoot at closer to 495 fps?

8)


Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 10:47 am 
Offline

Joined: Wed Dec 05, 2012 6:52 pm
Posts: 140
Stock, they run 400 to 425 fps but on the twin mainsprings which are a bad idea really.
Using a HW30 spring shortened to 18 coils....flattened end and re polished ends....then machining up nice snug fitting Delrin guides ..returned 465 fps...
Finally chucking out the inconsistant leather piston seal for the TR Robb PTFE head but i modified this slightly to give a little more stroke and feather edged it ...
Taking it on into 500 fps territory with a piston weight ....actually quite a bit above but i scaled it back to 495 fps by removing the weight....for the reduced recoil......its smooth..vibration free and virtually silent..
These Walthers have near perfect piston stroke/volume/transfer port parameters ....ruined by the twin mainspring set up...


Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 10:50 am 
Offline

Joined: Wed Dec 05, 2012 6:52 pm
Posts: 140
Delrin guide and slip ring


Attachments:
IMG_452.jpg
IMG_452.jpg [ 17.36 KiB | Viewed 935 times ]
Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 10:51 am 
Offline
User avatar

Joined: Fri Sep 23, 2005 2:29 pm
Posts: 6297
Location: Okanagan,BC
Quote:
its smooth..vibration free and virtually silent..


Nice!

:)


Last edited by wllm995 on Mon Oct 23, 2017 10:53 am, edited 1 time in total.

Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 10:52 am 
Offline

Joined: Wed Dec 05, 2012 6:52 pm
Posts: 140
Thank you buddy ....if you need more info let me know ...ive been tuning them for 10 years now but this Kurtz version my first


Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 10:54 am 
Offline

Joined: Wed Dec 05, 2012 6:52 pm
Posts: 140
A friends full length version ....497 fps
Plus the group i shot at 8 yds ....


Attachments:
IMG_456.jpg
IMG_456.jpg [ 18.7 KiB | Viewed 931 times ]
Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 11:00 am 
Offline

Joined: Wed Dec 05, 2012 6:52 pm
Posts: 140
Piston and internals were taken to a high polish ....


Attachments:
IMG_454.jpg
IMG_454.jpg [ 20.66 KiB | Viewed 924 times ]
Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 11:18 am 
Offline

Joined: Wed Dec 05, 2012 6:52 pm
Posts: 140
....development components returning various performance effects...
Its been fun.


Attachments:
IMG_453.jpg
IMG_453.jpg [ 28.94 KiB | Viewed 917 times ]
Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 1:51 pm 
Offline

Joined: Sun Mar 24, 2013 1:56 pm
Posts: 228
Location: Lebanon, CT
Well done! and now you've got an enviable shooter. Nice. RC


Top
 Profile  
 
 Post subject: Re: LP53 k 495fps
PostPosted: Mon Oct 23, 2017 10:24 pm 
Offline
User avatar

Joined: Sat Mar 16, 2013 5:15 am
Posts: 4137
Location: Edmonton
Very cool. Thanks for posting.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 18 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
News News Site map Site map SitemapIndex SitemapIndex RSS Feed RSS Feed Channel list Channel list

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group

phpBB SEO