Bowkett Meteor (stripped, pics and questions)

[POK!]

The spring spec on the beastie is as follows......

Overall length = 240mm

No. of coils = 30

Inner diameter = 12.8mm - 0.5"

Outer diameter = 19mm - 0.748"

Wire diameter = 3mm - 0.118"

Are you sure the second spring isn't just the last few coils broke off the original? It's fairly common and the reason some guns gradually lose power over time as the two springs wind one into the other reducing OAL and pre-load. Figure out the true OAL and coil count (and your guide OD), I'll see if I can get one made this month as I have an order pending.

EDIT: should have read entire thread.
EDIT2: I'm always doing springs, I just don't like people so I tell them I'm not!

[evert]

Fascinating... Now I might be tempted to do make internals similar to this to my mk3 "experiment" gun.

How about the cocking lever and piston? there surely must be some mods done to create room?

[Hsing-ee]

Fascinating... Now I might be tempted to do make internals similar to this to my mk3 "experiment" gun.

How about the cocking lever and piston? there surely must be some mods done to create room?

I've got such a project waiting to be done, using an adaptor for a 26mm Weihrauch parachute. Basically you need to measure up and just grind out the back of the slot in the piston so it can go forward & make sure the cocking leaver does not foul the woodwork and it should be job done!

I have also got a couple of squared off piston heads to use with 'O' rings but no buffer. Will let you know how I get on ..

[evert]

I've previously done a "stroker" with a maccari diana type seal, on a delring piston front that gives me a few extra mm's of stroke, but not so much as to require lengtehning tha piston slot. This conversions shoots about at about 710fps with 7,9grs, which can be done with an unmodified meteor as well, but my conversion is much more comfortable to fire.

A reason for me to do a copy of the bowkett tune, would be to experience how it feels during firing, I suspect that this would feel a bit harsh during firing..

[albrown]

I've previously done a "stroker" with a maccari diana type seal, on a delring piston front that gives me a few extra mm's of stroke, but not so much as to require lengtehning tha piston slot. This conversions shoots about at about 710fps with 7,9grs, which can be done with an unmodified meteor as well, but my conversion is much more comfortable to fire.

A reason for me to do a copy of the bowkett tune, would be to experience how it feels during firing, I suspect that this would feel a bit harsh during firing..

I have an hw35 tuned by John Bowkett and the firing cycle is quick, but not harsh... I find it surprisingly insenstitive to hold

[lightning22]

Are you sure the second spring isn't just the last few coils broke off the original? It's fairly common and the reason some guns gradually lose power over time as the two springs wind one into the other reducing OAL and pre-load. Figure out the true OAL and coil count (and your guide OD), I'll see if I can get one made this month as I have an order pending.

EDIT: should have read entire thread.
EDIT2: I'm always doing springs, I just don't like people so I tell them I'm not!

It's a while since I did this but from memory the small section of spring was very tight on the guide and the whole assembly had a huge amount of preload, something that shouldn't really be there had that length come from the end of the original spring.

Curious business model you've got there BTW..