|
.222 Barrel length plus Twist Effect MV
Question 1: Does Barrel length and rate of twist effect MV?
Question 2: What data do I use to achieve 3000 MV in a Ruger Mini 14, 18.5 Barrel, 1-10 twist and Why?
This is in .223
All bullets have SD .157 and BC .255
Here is the data
Speer #11 manual
Rifle Ruger Mini 14 18.5 barrel", twist 1-10, cases W-W. Primers CCI 450
55 gr Spitzer SD .157 BC ..255
Powder H335.
25.0 gn. 2948 MV
26.0 gn. 3067 MV
27.0 Gn 31.93
Speer # 13 manual
Rifle Ruger 77 Mk11, Barrel 22", Twist 1-12 Primers CCI 450, case IMI
55 gr spitz-SP, SD.157, BC .255
Powder H335
24.0gr. 2805 MV
26.0gr. 3092 MV
Speer #8 Manual
Rem 700, barrel 24", Twist 1-14, Case Rem, Primer Rem 7 1/2
55 Gr Vmax SD.157, BC .255
Powder H335
21.7 gr 2700 MV
22.5 gr 2800 MV
23.3 gr 2900 MV
24.1gr 3000 MV
24.9 gr 3100 MV
Thanks
Tim
__________________
TFL
|