Canadian Airgun Forum

The #1 Community for Airguns in Canada!
It is currently Tue Jan 28, 2020 2:08 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  [ 37 posts ]  Go to page Previous  1, 2, 3  Next
Author Message
PostPosted: Fri Dec 13, 2019 1:28 pm 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
Doc sharptail - what kind of work to the bolt do you figure?

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps


Top
 Profile  
 
PostPosted: Fri Dec 13, 2019 2:10 pm 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
pistolero wrote:
This always interest me for the internals, do you have any pictures of the parts removed


The only parts on it that were different than the 13xx were the breech, bolt and trigger assembly. The hammer is thinner in the middle and seems lighter than a 13xx hammer, it also has a longer but softer spring.

I threw away the plastics and the trigger assembly already, but if there's anything in specific that you'd like a pic of, let me know!

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps


Top
 Profile  
 
PostPosted: Fri Dec 13, 2019 3:48 pm 
Offline
User avatar

Joined: Wed Oct 17, 2007 3:27 am
Posts: 2595
Location: Winnipeg, Canada
Hondaromper wrote:
Doc sharptail - what kind of work to the bolt do you figure?


Iirc, the bolt will have to tuned down in order to get the pellet past the t/p hole. It's been 3 years or so since I last looked.

-D.S.

_________________
"Ain't no half-way"
-S.R.V.


Top
 Profile  
 
PostPosted: Fri Dec 13, 2019 7:18 pm 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
So I ended up cutting the plastic transfer port off of the m4 barrel, then drilled my own leade and transfer port hole using a cordless drill, some wood clamps,and a broken chainsaw file. I don't have the right bit for my dremel, so i wasn't able to really clean things up. But I was able to fit and pressure test it with promising results.

Once I'm able to clean it up I'll be able to get some shooting in and let you all know how it worked out!

In regards to power, I'll be using the m4 valve with an oversized check valve from a crosman 130 to further choke it down. So with that valve setup, and the fact that my pump tube is about 3/4" shorter than the m4, i think i should be safely below 500fps at 10 pumps

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps


Top
 Profile  
 
PostPosted: Sat Dec 14, 2019 10:01 am 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
8 shots at 8 pumps each using rws superdomes, freestanding at 15yrds..

I'm shocked that it's working this well... oh rabbit hole hahaha


Attachments:
1576335497158658074197.jpg
1576335497158658074197.jpg [ 436.04 KiB | Viewed 140 times ]

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps
Top
 Profile  
 
PostPosted: Sat Dec 14, 2019 10:16 am 
Offline
User avatar

Joined: Wed Jul 26, 2017 7:01 pm
Posts: 2314
Location: GTA, ON
Post A picture of the carbine~ I want to see that more~ [emoji38]

And try some shots use a good rest post to see the limit of the gun~ want to know that too~

You finished the project so quick~ what will you do in the remained long winter?? 8-)


Sent from my S9 via Tapatalk

_________________
Future AA ProSport
HW30/35
2240+14" barrel
Camo Chaser long barrel rifle kit
P3+2x20 Kit Scope
HW40+Extender
HW45+Grip panels from Russia


Top
 Profile  
 
PostPosted: Sat Dec 14, 2019 10:59 am 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
I'll do some bench rested testing when I can get the "facilities". These were just some shots i took standing in our outdoor range where we normally shoot to see how it performed in real world conditions

I mounted the barrel and breech on my 2289 tube for the time being so I can have a chance to cleanup the 1377 tube (been in storage for 5+ yrs), and used the m4 valve with an oversized check from a crosman 130. Trigger assembly is also from a 130 and works beautifully! The white stuff on the muzzle is some thread tape that I used to friction fit the 2289 sight.

As for the rest of my winter, I have to make a choice which of my bikes is going to get some love this year. 1976 goldwing needs a new motor, but I also crashed my wr290r pretty hard last spring so it needs some money thrown at it too. Sv650 scrambler is soo tempting to finish, but is very low priority at this time. But if all goes "well", I may be getting some plates and screws removed from my shoulder because apparently my anatomy doesn't like titanium as much as my eyes do! So I'm taking it day by day right now


Attachments:
15763385356931130446409.jpg
15763385356931130446409.jpg [ 674.45 KiB | Viewed 150 times ]

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps
Top
 Profile  
 
PostPosted: Sat Dec 14, 2019 12:53 pm 
Offline
User avatar

Joined: Wed Jul 26, 2017 7:01 pm
Posts: 2314
Location: GTA, ON
What a busy winter indeed~

And a good looking 2289 with the M4 barrel ~ ( didn't see the difference vs a normal 2289~ [emoji38]) I planned on a 2289 at the very beginning however it was discontinued and no luck in finding one. So I started my pumper life with an 1322... However I followed the suggestions for a steel breech right away... And I think you need one too if you want to scope it...

Sent from my S9 via Tapatalk

_________________
Future AA ProSport
HW30/35
2240+14" barrel
Camo Chaser long barrel rifle kit
P3+2x20 Kit Scope
HW40+Extender
HW45+Grip panels from Russia


Top
 Profile  
 
PostPosted: Sat Dec 14, 2019 3:17 pm 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
Ya, I got pretty lucky when my friend gave me his 2289 because he was moving.. I ordered a steel breech from d&l last week, so it should be here soon :D Ultimately I'm hoping I'll able to make a 30yrd tack driver using the stock barrel, but we'll see how it goes.

As for this barrel, it will be fitted to my old 1377 tube and trigger frame (shimmed, polished with a lighter spring) with stock sights (for now) and a telescopic stock. Should keep kiddo and the wife entertained for awhile (wife's been using a beeman springer for years that has probably an 8lb trigger on it!).

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps


Top
 Profile  
 
PostPosted: Sun Dec 15, 2019 10:12 pm 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
Got the m4 stock modified, everything fitted onto the 1377 tube and tested. I'm going to disassemble it and trim up the barrel band to make it more stream lined as well as repaint the stock and clean everything up.

Fyi, if anyone is wanting to do this swap using the m4 valve, you will need to drill a new hole for the bolt at the front of your trigger assembly. This means driling and tapping into your valve... or if your on limited resources like myself, you drill and thread the tube to the closest sized bolt you have, then just oversize the hole in your valve so that the bolt extends into it and effectively pins it.

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps


Top
 Profile  
 
PostPosted: Sun Dec 15, 2019 10:16 pm 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
.


Attachments:
20191215_211543.jpg
20191215_211543.jpg [ 661.02 KiB | Viewed 114 times ]

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps
Top
 Profile  
 
PostPosted: Sun Dec 15, 2019 10:25 pm 
Offline
User avatar

Joined: Wed Jul 26, 2017 7:01 pm
Posts: 2314
Location: GTA, ON
Wow~ it actually looks unexpectedly nice~ what a Tactical look on an old 1377! I like the muzzle end keeps the M4 look...

Sent from my S9 via Tapatalk

_________________
Future AA ProSport
HW30/35
2240+14" barrel
Camo Chaser long barrel rifle kit
P3+2x20 Kit Scope
HW40+Extender
HW45+Grip panels from Russia


Top
 Profile  
 
PostPosted: Sun Dec 15, 2019 10:45 pm 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
Thanks! I'm surprised it turned out as well as it did too! And considering all it really costed me was the epoxy for the stock, I'm pretty pumped!!

Also, i just got my steel breech in the mail today for my 2289, so hopefully ill have pics up sometime soon of the pair all tidied up

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps


Top
 Profile  
 
PostPosted: Mon Dec 16, 2019 5:57 am 
Offline
User avatar

Joined: Tue Mar 17, 2015 7:43 pm
Posts: 187
Location: Estrie, Québec
Hondaromper wrote:
In regards to power, I'll be using the m4 valve with an oversized check valve from a crosman 130 to further choke it down. So with that valve setup, and the fact that my pump tube is about 3/4" shorter than the m4, i think i should be safely below 500fps at 10 pumps


My logic might be lacking, but the same amount of air (10 pumps) in a smaller valvevolume equals more pressure, combined to a longer 177 caliber barrel, this could easily lead to more than 500 fps.

A chronograph is essential before making this kind of modification on a pumper.

But nice work :wink:

_________________
I'm breathing air, I'm shooting air…


Top
 Profile  
 
PostPosted: Mon Dec 16, 2019 6:33 am 
Offline

Joined: Mon Dec 02, 2019 9:03 am
Posts: 36
Location: Northwestern Ontario
My logic might be lacking, but the same amount of air (10 pumps) in a smaller valvevolume equals more pressure, combined to a longer 177 caliber barrel, this could easily lead to more than 500 fps.

I can see your point. I was just trying to "even things out" on account of having a shortened pump stroke, and I assumed that the valve would only vent so much out behind the pellet and the rest would go out the bleed port on the back of the valve.. What do you figure if I just installed the original check into the m4 valve? If I'm using entirely m4 valve and barrel, shouldn't the max fps be the same as the m4 in stock form? I'm also using a 1377 transfer port, which was believe it or not actually smaller than the m4 one (both completely different actually).

I'm trying to play it safe here so I don't break any laws, and i do intend on buying a crony, but its hard to justify buying things like that for myself (and the wife) this close to christmas.

_________________
A pro knows how to achieve results, an expert knows how to achieve the same results with fewer steps


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 37 posts ]  Go to page Previous  1, 2, 3  Next

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 0 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