Well I have read that 18-22 percent of the population is left handed. I think its probably a little higher than that. I think the UMags are just not selling as fast as Remington had planned. For a while here where I live there were 7MM UMS in left hand all over the place. Same with the 300 UM. After a few years they began to thin out and now I don't see many. I am one of the lefties but have no need or desire to own one of the UM's. I do or have done a lot of bear hunting but have been well served with the 30-06 and 45-70. I had a 416 Rem Mag but I naver really shot it much.