Hello Steve, your hulls show no pressure signs, if it was me I would load another three rounds with 1/2 gr increments and keep watching the hull after each shot.
On the positive side you already have a Freight Train load ready to take on any game in North America.
Let your sixth sense do the talking, you decide ! !
Thanks for posting the pictures for us all to get the idea.
Best of luck.
Ajay Madan
Super Blazing Sabots