Advice in 270 load and pressure 150g ablr

[BBgun13]

Hey there new to reloading just got back from the range looking for advice on my load work up. I'm shooting 270win hornaday brass once fired with 150g nosler ablr win lr primer. I worked from a 51 - 55.5g of h4831sc. All primers looked pretty similar and no tight bolt or visable swipe. I am new to reloading any help here would be great my question is am I getting flattened primers or any signs of pressure. Any advice on going further with charges if no signs visable. Other posts with ql calcs have stated up to 57g max charge for this powder. I did have a accuracy node at 52 to 53 but would like to go for higher velocity.

Top:Right Factory hornaday 145eldx. Middle 51g h4831sc. Left 55.5g h4831sc
Middle: 55.5g h4831sc
Bottom: 51g h4831sc

 

[ajwarrior]

You'll probably get best responses if you'll post this in the "Reloading Depot" section.