Just under 2600, 24” barrel with 38 grains 2.800” coal and cci450. I started with 38gr working through to 41.5 in half grain incrinents and no pressure signs. The 38 grain load shoots 0.140’s so I just called it good. Maybes I will try 42, 42.5, 43 and see if I get any pressure and see where the groups fall then tweak from there.