Quote Originally Posted by Josie & John View Post
I think the Mk 6 still has the same length cylinder as earlier models. It was made from part British and partly Spanish components but as I don't own one, I may be wrong on the dimensions. Certainly and as you say the wholly British made Mk1 to 5 Meteors shared the same cylinder dimensions. The Mark 7 was a completely different rifle with a longer cylinder - IMHO the only element it shared with earlier Meteors was the name

John
Just measured a used but still quite good Meteor Mk6/Gamo spring, plus several collapsed springs I have pulled from old mk3-5 meteors.
Keep in mind that my worn digital caliper may not be measuring the hundreths of a mm accurately, but the measurements should be quite
close on the tenths.

Mk6/Gamo:
Wire diameter: 3,0 mm
Coil ID: 13,5mm
Number of Coils: 36, counting both ground end coils.

Pulled from old Mk3-4-5 Meteors, with no guarantee that they were original:
Wire diameter: 3,0 - 3,1mm
Coil ID: 12,7-13,5mm
Number of coils: 35-36 counting both ground end coils

I havent measured the cylinders/spring room and stroke lengths, as I dont have time to take guns apart right now.
But I'm using Maccaris Meteor spring in mk 3-4-5 and 6 Meteors with good results.

Differing part numbers may be because the Mk6 used a Gamo spring?