Am I reading that right? 3900fps?
yeah, you are reading right...
however before you take that to heart..
those were my last two bullets that I chrono'ed... and even I think that is a little optomistic...
So I have loaded up somemore and plan on getting time today or tomorrow and going out and chronographing those again..
My chronograph might have either been on drugs, or thinking it was a liberal politician come election time again...
however in a 223, with those 40 grain bullets, and a load of 14.5 grains of Blue Dot, those are yielding some impressively high velocities...
with the 30 grain Berger HP, which is as long as the 40 grain Blitz King, V Maxes, etc... the 223, with that bullet and a nice charge of blue dot is getting 3800 fps....
What I have planned to chronograph, and is already loaded from last night...
is 40 grain V Maxes, Sierra 40 grain HP, 40 grain Ballistic Tip, 36 grain varmint grenades, and the 30 grain Bergers...
all using the charge of 18.5 grains of Blue Dot...
that is below what I list as max charge.. however the temps are also running over a 100 degrees here as normal for this time of summer.. so I don't want to push the max charge in this kind of heat with a really fast powder...
another cool thing about these loads.. when reloading the cases last night.... they had not expanded enough upon firing to even need resizing.. all I had to do was deprime and reprime them...
That can be a handy feature for those of us that might go out in the field for a couple of days and reload our shot ammo after dinner, or while taking a breather and letting the barrels cool and letting facial muscle relax after getting scope squint from 3 or 4 hours of shooting....
another guy on another forum is going to try this out in an XP 100.. it ought to be intersting to see his results..