Pressure/ velocity check

[Dt219]

[Happy2Shoot]

Can you post pictures of the case head, and bolt face?

You are almost 2 grains under max. I'm sure you are fine.

Swipes are a sign of high port pressure at the time of extraction, not high chamber pressure.

[Dt219]

[grayfox]

I opened up my gr tools simulator; I did an estimate for my howa (20") and the 85gr sierra with H335. Then worked it back to see what an 18" barrel would do.
According to this (which is just a simulator, mind you), 2725 from 30.3 gr out of an 18" barrel puts you about 93% full, 46,000 psi and very close to node #4 (hence predicts nice accuracy).
So this grt indicates your load would be fine to use.
The case swipes/ejector marks don't seem to be from excessive powder/over pressure.

[Dt219]

[mtnlvr]

An ejector that has not had its edges beveled / rounded.

[VASCAR2]

Plus a stout ejector spring.

[Dt219]

I did trim a couple coils off the spring and bevel it some time back. What about the circular stamp imprint from the ejector hole on the case head ? I tumbled the brass last night so they are very very hard to see now.

[Klem]

Dt,

One reason for the swipe might be the ejector is not depressing flush with the bolt face. You have cut a couple of coils off the spring so unlikely this is the reason but a quick check will eliminate that possibility. Depress the ejector manually with a Philips head screwdriver and see how far in it will go.

[Dt219]

Ok I just checked it, many many in and outs its definitely got some trash behind it most times it goes just barely below the bolt face but a couple times it did stop before flush with the face I will disassemble and clean it next chance

[Pwoller]

Can you post pictures of the case head, and bolt face?

You are almost 2 grains under max. I'm sure you are fine.

Swipes are a sign of high port pressure at the time of extraction, not high chamber pressure.

[Dt219]

Update. I cleaned out ejector, completely disassembled and put back together, went on up on my charge and hit another sweet spot at 31.1gr. No signs of pressure, well maybe a light swipe is all so far