Skribs;
If the bolt of a backward (RH) gun will clearly slide over the left thumb gripping the stock, that's a big plus. Otherwise, sooner or later, you lose skin. I shot competition & had to make the time hacks while slung up. I developed the following method that worked for me:
Round fired. Left hand continues to grip the wrist of the rifle, dropping the stock down from the shoulder & pushing slightly forward. Right hand releases the forearm & grasps the bolt knob. The down & forward motion aids in opening the bolt & drawing it to the rear. The left hand has now stopped dropping the gun & right hand forces the bolt forward stripping a new round. Left hand raises the gun to shoulder & in the process of that the right hand closes the bolt & moves to the forestock. The buttstock is drawn into the shoulder, sights acquired, & round fired. Getting the right hand back on the forestock correctly while slung up is something that takes a lot of practice.
I no longer have much to do with RH guns at all, but back then there was no choice. I found that adapting to a lefty bolt gun took a couple of days dry fire practice in the home & a couple of range sessions, no big deal.
I very firmly agree with the thought expressed above that any RH shooter that says a lefty should just adapt ought to be forced to run a lefty bolt until he can adapt also. After all, turn about's fair play, no?
900F