Loading by volume vs weight

[sundog]

What is the load data?

What is the case prep?

[johnho]

When I make bread I do everything by weight. Volume means nothing and can cause problems if you don't have the right weight of the ingredients.

[abunaitoo]

Case prep.
Deprime and neck size I forget what brand dies.
Vibrate clean in corn cob.
Clean primer pocket.
Measures OAL. Trim as needed.

I forget what the load was.

He weighs each charge. Digital scale.

He has one of those strap on the barrel cronies.
Spread is very low.

[megasupermagnum]

Case prep.
Deprime and neck size I forget what brand dies.
Vibrate clean in corn cob.
Clean primer pocket.
Measures OAL. Trim as needed.

I forget what the load was.

He weighs each charge. Digital scale.

He has one of those strap on the barrel cronies.
Spread is very low.

The digital scale is a red flag to me. Unless you are intimately familiar with your own unit, they are inaccurate. The readings drift as they warm up, and are more difficult to use do to reading hold features. Try a good beam scale.

But if velocity spreads are low, say sub 30 fps ES, then that's not the problem.

[perotter]

Something to remember when using weight is the changes caused by moister percent and the percent of 'solvent' in the powder. There was an article written on this about 20 years ago about the testing of this. Likely there will be more variation in 8 pounder use up over 8 years than a 1 pounder used in a year. I load by volume, not weight.