The question is...................
What speed are they running at?
We know 4895 is a good 30-06,.308,.223 powder
But you know nothing if you don't chronograph them.
There has to be a baseline somewhere and as far as safety goes how they group really is not it.
Keep in mind also as tempature goes up so will Speed & Pressure
Not trying to be mean here but you are making a potental BOMB is it not worth a bit more info than how it groups?

My .02
Farmritch