Shaun, respectfully - I think you need to get yourself and one of those rifles to the range. Pick the one that feels best on your shoulder and make your best effort to get it ready. You can't have a lot of time left before season to prepare, so try to have ONE of those rifles sighted in and ready to be used with confidence. Try the XTPs you mentioned with 90 to 100 grains by volume of Triple7 FFg loose powder as a starting point.

Read many of the tips on this forum for obtaining consistent, accurate results. Be safe.