09-08-2020, 07:12 AM
(This post was last modified: 09-08-2020, 07:26 AM by SHORT-N-SASSY.)
As we await a response from Hornady, I researched the issue:
Comparing Advertised Ballistic Coefficients with Independent Measurements
http://www.65grendel.com/forum/showthrea...post114343
(See the attached PDF file) The Report covers January, 2009 thru June, 2011.
Introducing the ELD-X: Hornady's newest and most sophisticated bullet is a BC breakthrough
http://www.thefreelibrary.com/Introducin...0436981663
And, as stated by BluntForceTrauma in his July 16, 2015 Report, Litz found the Ballistic Coefficient of the Sierra 6.5mm 123-grain MatchKing projectile to be 0.522, not 0.510, as advertised.
The following compares the 6.5mm Grendel (A)123-grain Sierra MatchKing, Ballistic Coefficient (G1) - 0.522, muzzle velocity (12.5" Barrel), 2420 fps, with the 6mm ARC (B) 108-grain Hornady ELD Match, Ballistic Coefficient (G1) - 0.536, muzzle velocity (12.5" Barrel), 2380 fps, to 500 yards, w/ 10 mph crosswind ---
![[Image: 12-5-6-5-G-123-MK-v-6-ARC-108-ELD.gif]](https://i.postimg.cc/sXMB2mb3/12-5-6-5-G-123-MK-v-6-ARC-108-ELD.gif)
Comparing Advertised Ballistic Coefficients with Independent Measurements
http://www.65grendel.com/forum/showthrea...post114343
(See the attached PDF file) The Report covers January, 2009 thru June, 2011.
Introducing the ELD-X: Hornady's newest and most sophisticated bullet is a BC breakthrough
http://www.thefreelibrary.com/Introducin...0436981663
And, as stated by BluntForceTrauma in his July 16, 2015 Report, Litz found the Ballistic Coefficient of the Sierra 6.5mm 123-grain MatchKing projectile to be 0.522, not 0.510, as advertised.
The following compares the 6.5mm Grendel (A)123-grain Sierra MatchKing, Ballistic Coefficient (G1) - 0.522, muzzle velocity (12.5" Barrel), 2420 fps, with the 6mm ARC (B) 108-grain Hornady ELD Match, Ballistic Coefficient (G1) - 0.536, muzzle velocity (12.5" Barrel), 2380 fps, to 500 yards, w/ 10 mph crosswind ---