they are similar in the same sense that a .38 special +p is ballistically similar to a .357 magnum..... the same, only less .....
NOT the same comparison. you are still well over 1000 foot lbs, and you can use a soft point spitzer. Plenty to take Michigan white tail which are large deer. On the other hand if your skills are limited I would be scared to use one like jimbo seems to be, I would go with the Mosin Nagant which Is a full size load which would be slightly superior to the o6.