View attachment 7863345a little test I did a couple weeks ago.
**update** I have since learned I was having issues with a carbon ring during this test so don't let my picture above scare you away from this bullet... it took me a while to figure that out and correct the problem. Solution, buy a bore scope and clean that transition area down to steel with a brush between the end of the cartridge neck cut out in the chamber and where lands ramp up into full rifling.
Because I use a relatively light powder charge I wasn't seeing the pressure signs some people do... I kept having fliers at distance that I knew where not caused by me,,, I ended up tracking it down to velocity spikes around 30fps, or so, every few rounds once I started monitoring every shot with my magnetospeed. I'll be retesting this bullet in a month or so once I get through the next couple matches with my Berger 109's