45 potential
Joe,
Notice I wrote 'loaded to it's potential' in the previous post. Off the shelf factory 45 colt (cowboy loads) is pretty aneimic although back in the day, when it was first loaded with blackpowder which it was invented for, it had similar ballistics as todays cowboy stuff and it killed grizzly bears. Not sure I'd want to try that today.
You might get away with using it at short ranges with deer, ethically I wouldn't.
Those rounds are usually loaded with cheap lead bullets designed for punching paper or ringing steel plates at short ranges.
If you can find some ammo produced by one of the smaller custom manufacturers (buffalo bore, Cor-Bon, etc.) using a more premium hollowpoint or softpoint bullet, and upping the velocity a bit, I'd go with that unless you do your own reloading, then you can make whatever you wish.
The better rounds will give you better ballistics, better range, more predictable and better bullet performance and more likely better accuracy past about 30 or 40 yards.
I'm pretty sure you can pick this stuff up online or by phone through the mail or some of the better stocked gun stores should have it. Post a thread either in this forum or the revolver forum and ask where you can find some of the better premium 45 colt hunting loads and best price to get a good idea of what's available and at what cost.
I load and shoot alot and I'm not sure of your daughters experience but with a scope and good ammo she should be able to do 100+ yards on a deer. (will a 94 take a scope?) Take her out and let her find her capabilities and her limits. She can practice with the cheaper stuff and then dial her in on the more expensive stuff when she's ready to hunt.