The action and mechanics of the rifle have remained stock. I have made a few mods to the butt plate and cheek comb to have a better fit and made up a new sling to save weight. The sling has a carbon fiber hook and my shooting cuff is a custom fit carbon piece for weight and distribution of load. I have a new CF butt plate and comb I need to finish up. Again these are to save a bit of weight. Photos to follow of the new pieces.
The action on my rifle is super smooth and I have not noticed any problems when changing brands of ammo. The closing pressure seems constant but my rebolting just slaps the bolt forward and yanks it back as quickly as I can so I'm not paying attention to the finer points of the feel.
I have shot a stock Larson but it didn't fit me too well. The Ethan Allen Biathlon Club has one in the club locker. The lift of the stock was very high and I spent a bit of effort rebolting as my shooting position has no way to really stabilize the gun during rebolt. Look at the pictures for reference. I felt as though I was always "catching" the gun to keep it on my hand so never really paid attention to the feel of the action. Next time I'm there I'll fire a few rounds prone instead of offhand so I can pay more attention.
I do know the rifle really likes RWS and Fiocchi. I've shot my most consistent groups with these brands. In the really cold weather, <15F, the Fiocchi biathlon ammo is just great. Too pricey for everyday shooting but worth the cash for races.
