ENTER ENTER Trim Length for Neck Sized Case: 2.050 in Trim Length for Full Length Sized Case: 2.050 in Fired Case Weight Empty: 180.90 gr Sized Case Weight Empty: 180.90 gr Fired Case Weight Full: 262.30 gr Sized Case Weight Full: 262.30 gr Water Temperature: 75.0 °F Water Temperature: 75.0 °F RESULTS adjusted for temperature: 81.18 gr 5.261 cm³ RESULTS adjusted for temperature: 81.18 gr 5.261 cm³ NOTE: An extra weight entry decimal place is available for lab grade sca les. If your scale resolves the usual 0.1 grai n, enter only what it reads, ignoring the last zero. The extra decimal place in the resul t is due to the water density compensatio n and may be entered in Qu ic kL OA D a s i t a ears. artridge ase Water apacity Weight and Volume alculator For resized case water capacity, remove the decapper from your die before sizing to lea ve the fired primer in place as a plug. If you are using new cases, you will later fire the one used in this measurement for fired case water capacity calculati on, so, pick an undented one of average weight from your lot. Run it far enough into the sizer to size and expand the neck, but lea ve the rest unsized. In either case, trim afte r sizing. For the new case, plug the primer pocket wi th clay to take the place of the spent primer as a plug. Weigh the case empty, then ent er the resulting number of grains in the second yellow cell of the second calculator below (just click in the cell and type over top of old entry). Fill it with water carefully until the wat er is exactly level with the case mout h (no meniscus, positive or negati ve). Tap it to be sure no air bubbles are trapped inside. Make sure no water drops get on the outside. Weigh it again, and enter the result in the thi rd yellow cell in the second calculat or below. Enter the temperature of the water in the bottom yellow cell of the second calculator. Weighing Instructions: For QuickLOAD or other internal pressure calculations, you need both sized and fireformed case water capacity if you want to get both accurate pressure predi ctions and % filled capaci ty of a full-length resized case. If you are going to neck size only, you only need fireformed case water capacity, so it is first, below. Two identical calculato rs are there so you can keep both numbers up at the same time. You must use the same brand of case, wit h the same load history as the rest you will use to develop your load. Select one that is of average weight for that lot, and size it (neck or full len gth) and trim it to the trim length you will use with the other cases. Enter the trim length in the top yellow cell of the calculator you are using (just click in the cell and type over top of old entry). For fired case water capacity determination, load and fire the trimmed case in the gun chamber you are going to make calculations for. Before decapping and sizing it, weigh it empty and enter the resulting number of grains in the second yellow cell below (just click in the cell and type over top of old entry). Fill it with water careful ly until the water is exactly level wi th the case mouth (no meniscus, po sitive or negative). Tap it to be sure no air bubbles are trapped inside. Make sure no water drops got on the outside. Weigh it again, and enter the result in the thi rd yellow cell in the first calculator below . Enter the temperat ure of the water in the bottom yellow cel l.

Case Water Capacity Measurement

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ENTER ENTER

Trim Length for Neck Sized Case: 2.050 in Trim Length for Full Length Sized Case: 2.050 inFired Case Weight Empty: 180.90 gr Sized Case Weight Empty: 180.90 gr

Fired Case Weight Full: 262.30 gr Sized Case Weight Full: 262.30 gr

Water Temperature: 75.0 °F Water Temperature: 75.0 °F

RESULTS adjusted for temperature: 81.18 gr 5.261 cm³ RESULTS adjusted for temperature: 81.18 gr 5.261 cm³

NOTE: An extra weight entry decimal place is available for lab grade scales. If your scale resolves the usual 0.1 grain, enter only what

it reads, ignoring the last zero. The extra decimal place in the result is due to the water density compensation and may be entered in

QuickLOAD as it a ears.

artridge ase Water apacity Weight and Volume alculator

For resized case water capacity, remove the decapper from your die before sizing to leave the fired primer in place as a plug. If you are using

new cases, you will later fire the one used in this measurement for fired case water capacity calculation, so, pick an undented one of average

weight from your lot. Run it far enough into the sizer to size and expand the neck, but leave the rest unsized. In either case, trim after sizing.For the new case, plug the primer pocket with clay to take the place of the spent primer as a plug. Weigh the case empty, then enter the resulting

number of grains in the second yellow cell of the second calculator below (just click in the cell and type over top of old entry). Fill it with water

carefully until the water is exactly level with the case mouth (no meniscus, positive or negative). Tap it to be sure no air bubbles are trapped

inside. Make sure no water drops get on the outside. Weigh it again, and enter the result in the third yellow cell in the second calculator below.

Enter the temperature of the water in the bottom yellow cell of the second calculator.

Weighing Instructions: For QuickLOAD or other internal pressure calculations, you need both sized and fireformed case water capacity if you

want to get both accurate pressure predictions and % filled capacity of a full-length resized case. If you are going to neck size only, you only

need fireformed case water capacity, so it is first, below. Two identical calculators are there so you can keep both numbers up at the same time.

You must use the same brand of case, with the same load history as the rest you will use to develop your load. Select one that is of average

weight for that lot, and size it (neck or full length) and trim it to the trim length you will use with the other cases. Enter the trim length in the top

yellow cell of the calculator you are using (just click in the cell and type over top of old entry).

For fired case water capacity determination, load and fire the trimmed case in the gun chamber you are going to make calculations for. Before

decapping and sizing it, weigh it empty and enter the resulting number of grains in the second yellow cell below (just click in the cell and type over

top of old entry). Fill it with water carefully until the water is exactly level with the case mouth (no meniscus, positive or negative). Tap it to be

sure no air bubbles are trapped inside. Make sure no water drops got on the outside. Weigh it again, and enter the result in the third yellow cell

in the first calculator below. Enter the temperature of the water in the bottom yellow cell.