27 May 2010, 02:40
yumastepsidecase capacity
Does anyone know if there is a chart or list that gives you a general case capacity in grains of most common cases ??
Roger
27 May 2010, 02:43
GLShooterNot that I have seen. I've weighed a bunch of 223 and 308 over the years and also put H2O in them to check.
I lost a computer so my numbers are floating around and I don't have access to them.
Greg
27 May 2010, 03:29
MickinColoThe Quickloads program gives case capacity in grains H2O. I don’t remember any charts though. Case capacity can be (not always) somewhat different between the various brands of brass. If you have a cartridge that you need to know the capacity, just ask. Someone with QL will answer you.

Like this. The case information is in the right lower part of this window.
27 May 2010, 04:01
MickinColoThanks bcp. I bookmarked that page.

27 May 2010, 09:26
guncurtis2Thats a great page. I love simple easy info. Not always easy to find.
27 May 2010, 11:38
Lost Sheepquote:
Originally posted by guncurtis2:
simple easy info
is often wrong.
If you want to know how many grains of a particular powder a case will hold, fill the case with that powder and then dump the powder in5o a scale. You will have to reduce the amount of powder by the volume of the case the bullet occupies (unless you are doing a compressed load).
Remember, the weight of powder that will f9ll the case will vary widely between powders.
If you want to know the straight volume of the case capacity, fill it with water at 4 degrees centigrade. The weight of the water in grams will be numerically equal to the volume of the case in cubic centimeters. You will have to figure out the coefficient of expansion of brass for yourself (likely will be insignificant).
Many anal-retentive loaders measure each case and sort them by internal volume. How picky are you? (Another way of asking, "Why do you want to know? There are many different reasons.)
Lost Sheep