Yep.... the black ones (45/50)

Just keep in mind that they load a little easier. They will decrease your grunts.... might not eliminate them.

The green ones (44/50) that decrease my grunts I get from MMP. You can buy thin black 45/50s from MMP. They are called "HPH 24" when you call by phone. However, I get NO relief from them personally because they use a different polymer in 45/50 that to my touch/feel, are not as slippery as the Harvesters.

MMP Sabot Website