Ruger American Ranch 5.56 Load Testing w/ 75gr Hornady HPBT Match Projectiles...

[sgreen3]

Just some quick load testing of some 75gr Hornady hpbt projectiles in a 1:8 twist Ruger American Ranch. I used a few various weights of Varget powder that have proved to do well in a few AR barrels over the years with the same twist and length of barrel as a starting point for testing. The results are shown in the video, with an issue with one load showing an increased SD but with the smallest group diameter. I'm planning to play with the OAL on this one to see if I can tighten up that SD.. Check out the video below!