I ran my new MP 415gn hollowpoint (pentagonal cone shape) across the radar yesterday. These had cc1 200 primers, 'cost effective' winchester brass (10th cycle), N130 VV powder. Carefully waiting 4min between shots.
Note how the radar starts logging irregular velocity after 65m. This is a fat arse bullet so i reckon anyone trying to find a bc beyond this with a smaller cal / boat tail etc is kinda wasting time.
I dunno if G1 is best to represent the hollowpoint keith designs but it has spat out
.26 as the average BC for this shape when powdercoated.
I did this batch using the hornady bell mouther and then Lee M die to crimp them. As you can see it makes for good ES and SD (for what thats worth in 45-70 :D )
That coating didn't want to come off even when struck by another bullet... but as you can see the points broke up into segments. I wouldn't use these on animals i intend to eat.
Attachment 208211
Attachment 208212
Attachment 208213