I used both the regular and crush-rib Harvester sabots last fall in my Omega. The regular loaded easier than the Hornaday sabots,but not much easier.The crush-rib sabots loaded like a dream, even after 4 or five shots at the range, without cleaning.The crush-rib printed about 2" higher than the regular ones ,but just as good a group. I bought mine from a place in Montreal,Que. but can't find the adress. I heard that Becky Middleton at Hillfolk Musket Supplies in Senlac,Sk. was going to get some in. Her phone is(306)228-2949. If she cant help you, PM me and I'll see if I can figure out how I ended up with the supplier in Montreal....Ken