fusion
The HPH-24 and 3-pedal ez from MMP
Those will likely be to small for a Savage with real smokeless..
The Crush Ribs will probably provide the answers you are looking for.
Knight use to make their own sabots, the big .511 black Knight was one of their own - do not think they make it anymore, but you never know check the knight site for that part number - looks like they do
http://www.knightrifles.com/productdetail.aspx?id=326457
MMP has the contract for Hornady, TC, and Knight at the present time. Although I thought Del (MMP) at one timehad told me that he had bought the Knight equipment...????
Look at the Knight sabot - there is a very large space between petals as compared to the other sabots - that is a Knight sabot built by Knight...