Originally Posted by Scooby
John Whiscombe used a system on the JW50 where the transfer ports were screw in with different sized holes, they were made from grub screws with holes drilled down the centre. You could then easily change the grub screw for one of a slightly different size, or try tapering or whatever you fancied.
Could you set it up with a Steyr port with the o ring as the barrel seal?
About as much use at field target , as a life guard at the Olympic swimming pool.