Looks like they work, for sure.
Well, I got these other bullets, so I gotta give them a try. I'll clock speeds and report groups.
I just traded for a VX-2 3-9x40. It fits my Roberts very well, has about as long a tube as the 4200 2.5-10x40, a longer ER and is several ounces lighter. I may use it on this gun.
VX-2 glass quality surprised me when I mounted one on a bud's .300 WM. It's about as good as the 4200 and pretty close to the VX-3.
DF