Hornady 120 ELD Match vs 123 ELD Match

[diddlyv]

Was visiting a major sporting goods retailer yesterday (recently acquired by another Industry Giant) and noticed hornady loaded 6.5 Creedmore with 120 Grain ELD match and the 6.5 Grendel was loaded with 123 Grain ELD Match. Wow running production of 2 bullets 3 grains apart. The details from the Hornady web site
120 Gr ELD Match
Item Number
26175
Ballistic Coefficient (G1)
.486
Ballistic Coefficient (G7)
.245
Sectional Density
.246

123 ELD Match
Item Number
26176
Ballistic Coefficient (G1)
.506
Ballistic Coefficient (G7)
.255
Sectional Density
.252

Has anyone actually got their hands on these 2 bullets that can explain what the difference is? I also wonder why the 120 is loaded in the Creedmoor and the 120 is loaded in the Grendel, other than the obvious .01 better G7 ballistic coefficient for the 123, based on that number one would think the 123 would also be loaded in the Creedmoor.

[kmon]

IRRC The 123gr was designed around the Grendel and the compound throat. The 120gr is one that has been around longer and is still a good seller for them. 5t6Ogive is different so that effects the BC but also effects how the bullets interact indifferent chamber configurations

[LRRPF52]

Secant vs tangent ogives. 120gr AMAX is loaded factory in the 6.5 Creedmoor, super flat load with almost no recoil in that cartridge.

Choose the 123gr ELD-M for 6.5 Grendel.

If you have a conventional throat, the 120gr ELD-M might work for you, but the BC is lower. People have been asking Hornady to load the 123gr in the Creedmoor for the BC instead of the 120gr.