02-03-2023, 12:24 AM
(01-30-2023, 01:10 AM)CZ527 Guy Wrote: Made it out today to do little load testing on a sub zero -1 deg this evening withe 90 gr CX over 30.9 grains CFE 223. While I was not surprised results were less than stellar in terms of velocity spread. 5 shot string gave a velocity spread from 2860 1st cold bore shot to 2931. This was with a Rem 7.5 primer & Starling brass.It's been cold here too, had to wear socks with my sandals this week .
If i omit the 1st shot then the speed ranges from 2899 to 2931.
Was unsuccessful for the 2nd time trying to capture a bullet at the end of a series of water jugs. grr
Will try a similar test on a warmer day
With the number of places going to lead free ammo , there is going to be a need for at least one cx style bullet or I fear the round will die out if we continue toward California requirements all over the country.