For your ranges, a full diameter hard bullet with SP nose works best. It can be seated deeply enough to chamber easily and allow enough powder for adaquate speed for 200 yard ranges.
For longer range shooting, bore ride round nose bullets will shoot with anything in standard rifles. The nose should be small enough to slip into the rifling over fouling, and the alloy soft enough so the entire bullet upsets to a perfect fit, producing a bullet that has rifling full length and just a round ball at the tip. Most long range BP shooters use spitzers, but fitting them and keeping the bore clean enough so they chamber is a hassle, and if the alloy is soft enough to get the upset described above, the pointed nose always lays off center and out of balance, making accuacy touchy to obtain.
If any of you want to shoot at longer ranges, pointy spitzes made with hard alloy really work well, but the gun must be throated for them to get adaquate powder for the speed required, or desired, which means swabbing the throat area every shot.