There are no factory loads any faster than Hornady. All the companies top loads about the same. We could reload the undersize sabot(33 cents ea) and load up with 300gr Hornady/Speer/etc bullets and get 2500 or more with hopped up loads in 3" case, but it won't group for crap. Won't be as good at 30yds as you are already getting at 200yds. And the the worst part is the factories know how relatively good their stuff is and they keep running the prices on up higher. Some factory loads are over 4 bucks each. We think that a good sabot can be made for 20 cents shooting available 40-60 cent bullets, and get good groups that the shooter would be confident with..Ed
