Originally Posted by Les7603006
Originally Posted by RDW
What is the OAL and are you loading into the lands?

What was the ambient temperature for the test?

Oal is 2.91" into the lands .01"
Temp of ammo and rifle were around 70




I have made some minor adjustments in QL that have closed the gap between the predicted and actual velocity with my 6x47 (weighting factor and start initiation pressure) and applied the same to your load. I was running your load with the initial data you provided and didn't want to post until I had the information above, QL predicts 2844 with 42.2 grains at 60.4K.

QL predicts 2914 with 43.3 grains at 66K, your loads are likely over pressure even though the primers do not appear to be flat in the photo.

There are other QL data fields that were not updated for your load including actual case capacity and bullet dimensions.





Last edited by RDW; 02/06/17.
Dave