The perferct load
- Thread starter zcar75
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Fingers McGee
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Spouts are only a nominal representation of the volume that a given weight of powder has. Ideally, a 25 grain spout would throw a charge of powder that weighs 25 grains; but that isn't always the case (probably is rarely the case). Granulation, formulation, and quality of ingredients all factor into the weight of powder.
If you want an exact 25 grain load of powder, you would need to weigh out 25 grains, then cut your spout to hold that much. Of course, your next can of powder may not equal 25 grains by weight using that same spout.
FM
If you want an exact 25 grain load of powder, you would need to weigh out 25 grains, then cut your spout to hold that much. Of course, your next can of powder may not equal 25 grains by weight using that same spout.
FM
I've not found nor heard of a single BP volumetric measure that was dead-on. In fact, from what I can tell, every instance points to the measure always throwing less than the advertised amount. I wouldn't doubt if ALL manufacturers are smart enough to make sure their measure throws less than marked as a CYA maneuver.
I bet your powder measuring tool (probably also volumetric) shows that 25 grain load to be less than 25 grains by weight.
I bet your powder measuring tool (probably also volumetric) shows that 25 grain load to be less than 25 grains by weight.
Another problem with Treso, CVA measures...
...is that you can't see inside to check that the powder in the spout is properly tamped....has no voids.
IMHO, a very important aspect of measuring powder is consistency of the powder charge. Is it important to know what the charge is? Of course it is, but it is no good if your 25 grain spout sometimes throws 25 grains and other times throws 15 because the powder failed to properly fill the spout.
You generally don't find out about this until the charge goes into the chamber and you can see that one chamber is not as full as the next.
This is a good reason for scoop measures or other types that allow you to see the powder going into the measure.
...is that you can't see inside to check that the powder in the spout is properly tamped....has no voids.
IMHO, a very important aspect of measuring powder is consistency of the powder charge. Is it important to know what the charge is? Of course it is, but it is no good if your 25 grain spout sometimes throws 25 grains and other times throws 15 because the powder failed to properly fill the spout.
You generally don't find out about this until the charge goes into the chamber and you can see that one chamber is not as full as the next.
This is a good reason for scoop measures or other types that allow you to see the powder going into the measure.
Doc, I'm one of those fellas who uses the "see-thru" type of measure. I use the Thompson Center U-View measure. It has a "wiper" to ensure consistency. And the spout is funnel shaped to make it easy to pour the powder in the chamber without spillage.
