What do Prvi Partizan 7.62x54R cases weigh?

[NuJudge]

I was weighing cases today.

Norma Boxer primed cases are about 181gr
Lapua Boxer primed cases are about 180gr
Bulgarian Berdan primed cases are just 156gr

I have some JMS 02 fired cases, which I believe are Prvi, which weigh just 153gr

I'm trying to get a handle on relative internal volume.

CDD

[mauser1959]

I do not know if this will help you, but here is an idea that I use. A lb is 7000 grains, a lb is also 453.5924 grams . A cc of water is = to one gram, most smaller syringes are calibrated to 1/10cc so that gives you a good place to work from. Not sure if this is close enough for what you want , but at times it gives me a close enough questimation for calibration. So a 10 cc syringe full of water has the 154.32 grains of weight. It is actually a rough scale , but close enough for a lot of things. One thing though that can be a bit of a bitch is that the surface tension of water lets it sit above the cartridge case... makes the calibration off a tad more than expected.