TNHagies
He must have a stronger spring in the firing pin than what I do. I still get too much blow back for my comfort. I can shoot 120g of 777 and not have an issue with blowback. But 100g of BH and it recocks the bolt and the primer comes to pieces and even once out of the action.
My spring is a Wolff replacement spring - it is definetly stronger. I do not get a re-cock - but 120 shoots better (less mess) than 100. Wierd....
If you have not tried Montanna Extreme-Bore Conditioner you might try it - it really seems to help. I know I can shoot multiple shots.