Originally Posted by Neil54 I have recently bought a Remington express. I have measured the transfer port at 4mm. This seems a little big. It is in .22 cal. How big is yours? I'll have a look at mine and get back to you when I've finished my brew, Neil. 4mm may seem big, but the volume of the port is also important, so if it's a short wide port it may not be too bad. All the best Mick
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