New 109 ELDM vs 108 ELDM

[wind gypsy]

Yup. This has happened across many bullet models and manufacturers over the years, however, not limited to Hornady nor the 147 ELD-M.

Yeah, I recall when berger revised BC on some of their most popular bullets a while back and had to release this explanation:

Update of Berger Bullets’ Performance Data

Berger Bullets has always been a leader in evolving the information provided to shooters, helping them make the most educated decisions regarding their bullet choice. Once again, we are pioneering new advances in ballistic performance data. Twist Rate Advancements First, we made new...

bergerbullets.com