A slow update... schools out, grand-kids everyplace, 3 with strep.... Oh boy, no that's oh girls.....
Any way, I have coated a sample of my 180 grain round nose with one and two and three coats.
Wanting to do my first speed test in a bolt, I elected to load .308 wins, three with each coating level. I know, not 300 Blackout. But the test is moving toward testing in a Blackout. I just don't have any confidence in these fat round noses feeding on a M4 ramp. But this too will be determined in time.
My first three, the triple coats, went swimmingly..... then I thought again. Yep, I did it, I had not re-adjusted my seating die and that fat round nose had stuck its 'nose' where it shouldn't. I swelled the shoulders of all three cases. I've never done this with 308s before, .223s yes... I pulled (radically) the bullets and started again. Velocities per say will not mean much but will give me an idea of how much leading with non coated bullets I would get and then a look see. Not very scientific but will let me get a handle on where to go next in this quest. Still thinking hard about a 135/145 grain flat base pointy type mold, don't care if the grease groves are thick ones or the thin ones. With no desires in the sub-sonic area, a 140ish grain bullet would meet my needs (for now), maybe.
The photo is one coat on the left, two coats in the center and three coats on the right. The three bullets used as separators are the ones I pulled (grabbed with pliers and ripped them out, not pretty but works).
I am wondering about how the coating was stripped off of the riding bands. They were covered when they came out of my Lyman 450 sizer.... Seating or radical pulling? Maybe not sufficient mouth bell? The skinning seamed to get worse with each additional powder coating layer. More to contemplate.
The next step may take some time. When the ice/snow melts off the drive, I will set up my chronograph and test all 9 test samples.
Till then, I have two birthdays and 5 granddaughters to deal with, oh joy...
Load with care (and think - I didn't