.20 conversion

Another biathlon sidelever style shooter, with automatic return (FX6000). Also known as FX Superswift and Logun Dominator.

.20 conversion

Postby Big Uli on Wed Oct 17, 2012 8:56 pm

Been thinking of converting my .22 Logun Dominator to .20

BSA.20 barrel machined to fit the Logun breech/action
.177 mags machined to take .20 pellets
.22 bolt machined to fit .20 barrel/breech

What else would need doing to get it all to work?
Big Uli
 
Posts: 8
Joined: Wed Feb 29, 2012 10:24 am

Re: .20 conversion

Postby PolarWolf on Fri Oct 19, 2012 3:28 pm

It might save you a bit of time to use the .22 bolt and brass barrel end. I have and it works fine, at least for a single shot rifle.
Webley FX2000 .22
FX T400 .25
FX Monsoon .22 Walnut
FX Cyclone .177 Regulated
FX Biathlon .177 Regulated

I've had:
Pretty much every model FX made :)
User avatar
PolarWolf
Site Admin
 
Posts: 971
Joined: Fri Mar 21, 2008 12:55 pm
Location: Fryslan, Netherlands

Re: .20 conversion

Postby Big Uli on Sat Oct 20, 2012 11:17 am

So you just took of the brass parts and fitted them to a .20 barrel?
Could you be more specific please
Not sure I follow you

What about the transfer port
Does anything need doing there?
Big Uli
 
Posts: 8
Joined: Wed Feb 29, 2012 10:24 am

Re: .20 conversion

Postby PolarWolf on Mon Oct 22, 2012 10:17 am

Big Uli wrote:So you just took of the brass parts and fitted them to a .20 barrel?
Could you be more specific please
Not sure I follow you

What about the transfer port
Does anything need doing there?


I took a .20 barrel and glued the .22 brass end to it which gives me a .22 transfer port, room for the .22 pellet probe and the internal O-ring all in one part. However, I'm using it as a single shot rifle. The biggest problem for you would be you'd have to use a .22 magazine to clear the probe and to load .20 pellets. This might or might not work depending on the clamping force of the O-ring around the magazine. I'll have a look if a .22 mag will hold a .20 pellet reliably.

The biggest problem you'll be facing with trying to port a barrel specifically for .20 (i.e. not using .22 parts) is the internal O-ring. You might get away with ordering the .177 brass bit and drilling it out a lil' for .20. You'd also have to find an O-ring to match both the size for .20 and the room in the groove left after drilling the part.
Webley FX2000 .22
FX T400 .25
FX Monsoon .22 Walnut
FX Cyclone .177 Regulated
FX Biathlon .177 Regulated

I've had:
Pretty much every model FX made :)
User avatar
PolarWolf
Site Admin
 
Posts: 971
Joined: Fri Mar 21, 2008 12:55 pm
Location: Fryslan, Netherlands

Re: .20 conversion

Postby Big Uli on Mon Oct 22, 2012 4:31 pm

Thanx for that

I think i buy a new rifle that is .20 from the start

I quite fancy a Daystate Huntsman
Big Uli
 
Posts: 8
Joined: Wed Feb 29, 2012 10:24 am


Return to FX Cutlas

Who is online

Users browsing this forum: No registered users and 1 guest