Quote Originally Posted by TonyL View Post
Well, unless I've guessed wrong, Pete, you'd be switching it with the .177 barrel?

So, if the power output was already healthy with the tiddler bore, switching to the more efficient .22 would raise muzzle energy too high, creating the need to de-tune and bringing with it the benefits of lower cocking effort and a sweeter firing cycle.
Sorry for any confusion Tone, I have a few Challenger/Mercury S based rifles, I've had so many over the years and have bought other stocks and parts and have made hybrids, I've also got a couple of untouched Challengers/Merc S's, I've just realised I need to change my rifle list below as my .177 hybrid now has a Merc S stock on it not the Challenger stock it once had and the .177 barrel is a Lightning barrel, so a right old mix of parts.

I think I need to take stock of what rifles I have and how they've evolved over the years.

Pete