I have them on my VZ24 in 338 WM. I love them. I use the permanent version, not the QD. They're a weaver-style base, but the ring is built more like a Talley. Rock solid, tank tough construction - good match for that rifle. They're a little beefy for a walking varminter, and don't have a MOA base available so limited applicability for LR hunting. I typically use my 338WM for <400 yds anyway, so no big deal for me.
Hope this helps,
Brian