.25 pellets are way easier to manipulate & the calibre is a lot of fun, but I would think that the spring will either need shortening or swapping for...
Had a look at the two spare red dots I've got, the older tasco one seems a better match for the old Relum, and it also fits the wide 12.5mm rails OK....
I’ll be honest, now I have my compressor, and as much free air as I want, everything is turned up to 11!:oldgrin:
Out of interest, I did try winding...