im still after a breech seal for my 1987 '45. every one ive been sent is too big by a nats winkle. does anyone know what size the very early '45s were fitted with please guys.out of all my outstanding airgun jobs to do this one is the most irratating! chambers do a seal which they say is the right one but they want 50p and a fiver for pp all for one tiny bit of rubber if anyone can point me in the right direction and pm me id be most grateful. cheers guys