Not a 6x45, but close and anyway I wanted to share
...picked up a Cooper Classic 21 chambered in 6x47 (6mm-222 Rem Mag). Laminated stock & stainless 1-10 twist barrel. I wanted something different that could duplicated my .222's in accuracy, yet be adequate for shooting whitetails. Kansas just legalized .22 caliber centerfires for deer hunting, but I figured a 6mm 85 gr Partition or 80 gr TTSX were better for that application (hence the 1-10 twist). Looking to get around 2,800 fps with the 80-85 grainers, and over 3K with the 70's.