That is a patched round ball twist. "The experts say" it is not enough twist to stabilize a conical bullet. Thus the bullet will start to tumble and accuracy will be lost.
A 1 in 10 twist is recomended for bullets. Some mfgs were making Hawken style guns with a 1 in 24 twist that were supposedly combos that shot both well. I have a TC Hawken I built from a kit that has the 1 in 24 and I shoot both round balls and conicals out of it. Workes just fine.
Best thing to do is get the gun and try it. Different powder measurments and ranges. Could be it will work just fine and the "exberts" be darned.
We all take every precaution when we are hunting and harvesting our animal. Well, what about after the animal is down? Do we know what has happened to that animal over it's lifetime? The following is an example of why we should be careful when we cut.
2 years ago, my father shot a nice 8 point on opening morning of the rifle season in Vermont. It was a beautiful, 2 1/2 year old deer, looked really healthy and moved normally. When my father went to skin it for...