lemoyne
The "super glide" we the regular people will not be able to purchase. They along with some other sabots that MMP makes are under contract to the company they are providing the speciality sabot for. I believe MMP has a 50/44 that they build and sell to Thompson Center that is a bit thinner than the normal 44 also.... I tried to talk Connie out of some them but did not get anywhere... contracts and legal things...
The 3P is the thinnest 50/45 that MMP makes for the general public. I believe I like the 3P better than the "crush rib" also and I think I would agree with the ability to handle the powder charge... I am shooting 110 grains of T7-2f with 300 grain XTP's and the worked great. Way to thin of a set-up for a White though...
On the MMP site if they are listed yet the will have a trade name EZ if the are not listed just ask Connie..