6ARC Data for Ballistic Apps

[GeorgeMac]

Would any of you mind checking my data for Hornady Factory 108’s? I haven’t pulled a round to confirm length. (Playing with different ballistic apps and velocities to put together “rough draft” dope cards for the 12” and 14.5” barrels.
If anyone has data on other 6mm rounds for 6ARC reloading feel free to post it in the thread for a reference  

Hornady 6mm 108gr ELDM

Diameter: 0.243

Length: 1.2680

Weight: 108gr

Drag G1/0.536 - G7/0.270

[shooterrex]

The factory 108 is averaging 2631 out of my 16" Wilson Combat barrel.

Hornady's balastic app has the 6 ARC in it.

[98Z5V]

13 hours ago, GeorgeMac said:

I haven’t pulled a round to confirm length.

Is this what you're looking for?  I have 900 projectiles for reloading (108 ELD-Ms), and I can measure a few.  The length issue is easy to solve.

[98Z5V]

JBM Ballistics has two listings for the Hornady 108gr ELD-Ms - I'll measure some from my boxes tomorrow, and post them...

https://www.jbmballistics.com/ballistics/lengths/lengths.shtml#Hornady

0.243	108.0	ELD M (Extremely Low Drag Match)	1.260
0.243	108.0	ELD M (Extremely Low Drag Match)	1.268

[GeorgeMac]

@98Z5V Thank you for confirming the bullet length of the 108's. That was the one data point on those rounds I was unsure of.

@shooterrex Thanks for the 16" barrel velocity. It will be nice to have a spot to see what velocities people are getting with different barrel lengths, and projectiles. 

[shooterrex]

4 hours ago, GeorgeMac said:

@98Z5V Thank you for confirming the bullet length of the 108's. That was the one data point on those rounds I was unsure of.

@shooterrex Thanks for the 16" barrel velocity. It will be nice to have a spot to see what velocities people are getting with different barrel lengths, and projectiles. 

Sorry incorrect information. 18" barrel on my ARC rifle. Sorry sometimes I forget which gun I'm talking about.