The top one of the two in my bottom pic is .177, I swapped a King ratcatcher for it, A chap had got the mod50 for his lad but he was sruggling as the gun was way too big for him, The King Rat fitted him perfectly, The sprog used it to good effect and brought plenty of rabbits etc home for the table!!
They live in Rasaay, A remote part of Scotland so the meat was very essential to them!
This was 'Dude' struggling with the lump!!
And enjoying himself!!
John