My brother has an Impact and it is very accurate. It has the usual TC tight bore and can be hard to load.
I have been using the Barnes expander sabots in my TC woods rifle, and they were hard to load, but I tried and it works, seating the sabot by itself and then dropping the bullet in and seating it. Barnes expanders are tapered on the base and work well using this method. I have my ramrod marked to ensure that I have everything seated proper. I have noticed no loss in accuracy by doing this. miles
