Thread: Gordon Reloading Tool

One thing to be aware of with GRT is "jamb" . I'm using it on some 223 loads I'm playing with just now, and with load with "a" it was within 15 fps of prediction, but I had some unexpected pressure signs on the load with projectile "b" as I hadn't taken into account that the different profile of the projectile was taking it up to the lands even though both loads were the same COL.