I'm pretty alright with .4" in the powder space, you're still getting as good as I'm after. Based on eyeballing their shapes the jump tolerance makes sense. I'm also glad to hear about the 4831sc. that I can always find, 2020 aside. That's usually the last slow-mid powder on the shelf and its treated me really well. I need to study the saami chamber again and see what that looks like. Overall you've swung the pendulum of indecision back to the .284, I thought what you're saying was theoretically possible but I hadn't heard of it. It seems like everyone fixates on what it COULD be and writes it off but in a 3" mag it's exactly where I want to be. If I want more spank than 168g/bc .616/ SD .3 @ 2800 then I'm going .30 cal, no second thought.