Thanks to deejayuu sending me dimensions, I was able to file up a new pellet transporter out of Delrin for the Merlin. Another non functional item made useable thanks to his help.
Baz
BE AN INDEPENDENT THINKER, DON'T FOLLOW THE CROWD
Was going to use some rod I have but it was not a tight fit in the bore. Delrin also is terrible to cut with a hacksaw or drill as it is fairly soft and blades and the drill wanders. Used 3 drills in increasing sizes up to 4.5mm to keep the hole centralised to where it had to be. Worked great, the rifle groups well. Found that wood files are best for filing Delrin, give a better finish.
Baz
BE AN INDEPENDENT THINKER, DON'T FOLLOW THE CROWD
Micky you are so right, I was thinking that as I was making it. Had all kinds of ideas how to mark it. Eventually I used an allen key that fitted the .177 bore exactly and had a very small right angle section.I put it down the transporter slot and hooked it in the bore. Then I scribed a line on it level with the top of the rifle and took measurement. The position I drilled worked spot on, I checked it by firing wadcutters into a soft pack of material and examined the front of the pellet to see if they had any marks from hitting the edge of the barrel breach.
Baz
BE AN INDEPENDENT THINKER, DON'T FOLLOW THE CROWD
Bit of a long shot but having found a 1968 bsa merlin that be longed to my dad when going through some of his bit when he passed it is missing the transporter i cant find any were that sells them did you still have the dimensions if so could you please send them to me