P-Max. Internal ballistic calculator.

[Oldbloke]

I just found this. It seems to work ok. How accurate is it? NFI

I would still check a manual tho.

https://www.p-max.uk/cgi-bin/pressure.cgi

[bladeracer]

I just found this. It seems to work ok. How accurate is it? NFI

I would still check a manual tho.

https://www.p-max.uk/cgi-bin/pressure.cgi

Doesn't seem to know the bullets or seating depth so you would have to measure your case capacity, then deduct the volume of the bullet within the case to calculate the "powder space"? And I can't see the relevance of case length.

[Oldbloke]

I just found this. It seems to work ok. How accurate is it? NFI

I would still check a manual tho.

https://www.p-max.uk/cgi-bin/pressure.cgi

Doesn't seem to know the bullets or seating depth so you would have to measure your case capacity, then deduct the volume of the bullet within the case to calculate the "powder space"? And I can't see the relevance of case length.

I didn't understand that either