Check my numbers

[cemjr]

GUN, 4.25" barrel 1911
bullet 185 grn HBRN Berry's platted 45 ACP
Brass, Winchester
Primer, CCI LP
Powder, W231 5.5 grains
COL 1.125

Three strings, 10 shots each

low 673.2
Hi 780.2
AV 723.0
ES 106.5
SD 32.8

low 642.6
Hi 759.8
Av 731.3
ES 113.5
SD 34.8

low 709.2
HI 782.9
Av 744.6
ES 73.7
SD 22.5


? Do the FPS look slow for a 5.5 grain charge
? Is the ES # large in string one and two
Rounds were built on Dillon XL 650

 

[shootniron]

This is my load for .45acp using cast bullets and I get about 50fps more than you are showing...but your figures seem about right for plated bullets. The spread does seem a little high on the first 2 strings, but as long as the gun functions and shoots well, I wouldn't worry about it. My spreads usually run about where yours is on the 3rd string.