ejection/extraction trouble shooting: adjustable gas blocks and powder burn rates

[44 AMP]

The load is mid point between min and max. I could have pushed it closer to 3000fps, but I had a couple of pierced primers.

We may have a difference of opinion on this, but I'd say if you are getting "a couple of pierced primers" (and there is nothing mechanically wrong with your rifle) then your load isn't midpoint between min and max, its AT MAX, for your specific combination of gun and components.

[tangolima]

Originally Posted by 44 AMP

We may have a difference of opinion on this, but I'd say if you are getting "a couple of pierced primers" (and there is nothing mechanically wrong with your rifle) then your load isn't midpoint between min and max, its AT MAX, for your specific combination of gun and components.

Pierced primers happened when I tried to go further, 1% or 2% below max. No pierced primers where I am. Just barely noticeable cratering.

BTW, load data is from hodgedon website. I do know it is a bit on the aggressive side.

-TL

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[HiBC]

I wonder how many people have and regularly use calibration weights for their powder scales.

[tangolima]

Originally Posted by HiBC

I wonder how many people have and regularly use calibration weights for their powder scales.

Everytime I turn it on. The powder pan weighs 34.34gr. When I lift the pan off the scale, it should display -34.34+/-0.02gr. I will recalibrate if not.

-TL

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[ballardw]

Originally Posted by HiBC

I wonder how many people have and regularly use calibration weights for their powder scales.

Every time I move the scale, which pretty much means at the start of any powder loading session.

[44 AMP]

BTW, load data is from hodgedon website. I do know it is a bit on the aggressive side.

Aggressive or timid, is just a point of view. What matters is the understanding that ALL reloading data, no matter by whom, or where published was NOT worked up in your gun, with your components.

Pressure signs are extremely good and reliable indicators, not of what the pressure amount is (in psi or whatever units used) but of what the pressure is DOING in your gun, with your components.

"Max" loads in the book are the max that they got, using their gun and components, and while one expects similar results, things with your gun and ammo can be different, either on the high side, or the low side.

I've seen (and had) some guns that show pressure signs below listed book max and some that have gone well beyond book max with no indication of high pressure at all.

IF you get pressure signs, no matter where your load is on the published table, STOP, you've gone as far as your gun wants to go. Increasing your load beyond that point because "the book said X was max" is foolishness, and may result in issues you don't want.

[tangolima]

Originally Posted by 44 AMP

Aggressive or timid, is just a point of view. What matters is the understanding that ALL reloading data, no matter by whom, or where published was NOT worked up in your gun, with your components.



Pressure signs are extremely good and reliable indicators, not of what the pressure amount is (in psi or whatever units used) but of what the pressure is DOING in your gun, with your components.



"Max" loads in the book are the max that they got, using their gun and components, and while one expects similar results, things with your gun and ammo can be different, either on the high side, or the low side.



I've seen (and had) some guns that show pressure signs below listed book max and some that have gone well beyond book max with no indication of high pressure at all.



IF you get pressure signs, no matter where your load is on the published table, STOP, you've gone as far as your gun wants to go. Increasing your load beyond that point because "the book said X was max" is foolishness, and may result in issues you don't want.

I did stop. Thank you.

-TL

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