I'm a missourian too. (joplin) Trust me, there isn't anything in this state that can't be taken easily with one of the 6 mm or 25 caliber rounds, and there is no need to magnumify a rifle to take these deer.
A 12 gauge slug is hard on a person, but if you handled it well, I can't see why you couldn't handle a 270 or 7 mm round.
I'm sure that you can find the opportunity to try out a few different rifles. If you have a gun club nearby or any other sort of range, they may have a "deer season sight in day" with hundreds of deer hunters there verifying that the rifles are on target. Go to that, ask questions, and I'm sure that dozens of people will let you do a few rounds out of their rifles.
Have a great day.
A 12 gauge slug is hard on a person, but if you handled it well, I can't see why you couldn't handle a 270 or 7 mm round.
I'm sure that you can find the opportunity to try out a few different rifles. If you have a gun club nearby or any other sort of range, they may have a "deer season sight in day" with hundreds of deer hunters there verifying that the rifles are on target. Go to that, ask questions, and I'm sure that dozens of people will let you do a few rounds out of their rifles.
Have a great day.