I'm not Joel, but I tried some BN with my 6.5-284. Here are my results: I ladder tested using H4831SC, Lapua Brass, BR-2 primers, and with 142 SMKs loaded 15 thou into the lands.
My application process was simple, half of a 1/8 teasp scoop of BN mixed with a few tiny droplets of 70% isopropynol, tupperware large enough to hold 100 bullets and a tumbler. I was looking for a thick paste. I tumbled for about an hour, although in retrospect, 15 minutes would have gotten the same amount of coverage. Even better would have been to tumble for a few minutes, rotate, and repeat until uniformly coated.
The isopropynol will evaproate some what quickly when you dump your bullets out, so I recommend making a small box with windoscreen for a bottom. This will allow you to dump the bullets on to a surface where it can dry evenly. I made the mistake of dumping them directly onto a towel and immediately rolling them around. 90% or more of the BN ended up on the towel, and the bullets were no longer uniformly coated. I tossed them back into the tupperware, hand shook the box, and dumped them back onto the towel, but gave them 15 minutes to dry before gently rolling them around to pull off the excess BN. If dumped into a pile, the bullets in the middle will still be wet. Make the box and save yourself the headaches I had.
OK, so we have coated bullets and the load, what were the results? BN will knock off a considerable amount of velocity. According to my chronygraph, my loads ranged from 2720fps with 48.5 gr to 2895fps with 51.1 gr of H4831SC. I haven't shot groups yet, so I can't talk about ES or SD quite yet. I can say that the barrel was easy to clean between groups. I shot each 15 shot test group with no cleaning between shots out of my Savage factory barrel.
I should also mention that the BN I used was purchased through Lower Friction and was their BN 1 lb sample pack. Assuming I don't spill it, this is probably a lifetime supply for even the large volume shooters.
Hope this helps.
-bnw
