I have two of the Leupy 2.5s, like them, but, find my elderly Leupy 3x to be brighter as are my 4xs.

I have one 2.5x on my P-64-.375 H&H 20" carbine, built by a buddy for prospecting in BC/YT/NWT and then sold to me as I was going to go to work for him, until my wife's became ill in early 2010.

The spare needs a change in reticle to the HD as the original has, but, they certainly are small, light and this rig is VERY accurate and also shootable with 300 NPs at 2400.

I wish that Leupy made a 2.5x on the 4xx28mm frame.