I have used these wads in my Pedersoli Sharps .45-70. Use about a 30" drop tube to allow the powder to compact in the case, and then place one of the wads on top of the powder. I used the eraser end of a pencil to tamp it down a bit. Try 65grains of FFG, with a 410 gr. lead cast bullet, and use WW L.R. Mag. primers. Seating the bullet will compress the charge. It works and it is an accurate load.