OK, lets be serious,
the only difference between the two is a rattling pump up front, or a self actuated action.
The parts are all the same, barrel(except gas block), action, bolt (for the most part) trigger mechanism etc.
The real answer is it depends rifle to rifle which is more accurate. Both are capable of good accuracy for hunting applications, and occasionally better.
These aint no bench guns, they're hunting rifles.
I've got a 7400 (06 carbine) that shoots into an inch with 180 gr corelokt's, and 180 gr partitions that were given to me. In 5 years (allmost) I havent had to do any load development because it shoots good enough for the amount I shoot/ hunt with it.
I've owned 742,s 7400's 760's and 7600's. personally Im not a pump rifle fan, and those reasons are mine, not because the rifle is incapable, Its all me.
They are both capable of good accuracy if used in the context for which it was built. Personally I prefer the semi. I clean my guns when they get home anyways, as most should. there is no more cleaning for the most part than any other action.
If your lazy, get a pump, if your not, a 7400 should suit you fine.