I've been using the 260gr WFNGC from Mt Bul Wrks for a decade or so. Still have a little less than half my original box of 500. Never shot anything with it but have carried it extensively here in SW MT. Here are a couple of targets shot on different days at 50 yrds rested over my range bag from a 2.75" M69. The load chronoed a little over 1,100 fps from the short gun and close to 1,200 from 4.25" M69.
.
[Linked Image from photos.imageevent.com]
.
[Linked Image from photos.imageevent.com]
.
One got away from me on the bottom target. The short barrel and red insert may have been responsible for the vertical strining.
.
FWIW,

Paul

Last edited by paul105; 11/07/23.