I have formed at least 200 6.5 Grendel to 6mm ARC, using the Mighty Armory die. I do not trim until after brass has been formed to 6mm ARC. I am using a light application of the home brew, lanolin spray lube. Great repeatable results with a buttery smooth stroke.
For what it is worth, I really like the Mighty armory full length die. Also really like the Whidden shoulder gauge linked below.
https://www.whiddengunworks.com/product/case-gauge-3/
For what it is worth, I really like the Mighty armory full length die. Also really like the Whidden shoulder gauge linked below.
https://www.whiddengunworks.com/product/case-gauge-3/