Brass or Aluminum reducing inserts for Chargemaster
- Thread starter MDM
- Start date
Thank you Dave! I cant believe I was suffering without one for so long! Spot on every time!
bushwacker7235
Gold $$ Contributor
ttt
back up. thanks
I use my Chargemaster to get close to the desired load when I'm making competition ammo, then I weigh the resultant charge on my Gem Pro 250 and adjust the final weight to the nearest .02gr. One kernel of Varget is very close to .02gr.
I prefer to have a dozen or two kernels scattered on a piece of paper. It makes it easy to add one or two to the pan if the charge is .02 or .04 gr short of ideal. If it's that close, I don't even re weigh the charge; I just dump it into the case. Outside .04gr, I correct and re weigh.
With my McDonald's straw, it was hard to be within .04gr half the time. With my new brass insert, the charges are much more consistent and therefor easier to fine tune. Here is a graph showing 17 test throws with the Chargemaster set to 25.0gr Varget. Most throws are a tiny bit under and that's the way I like it since adding a kernel or two from the piece of paper on my bench is much easier than trying to pick one or two kernels out of the pan to reduce an overthrow.
The results aren't perfect, but it's an improvement on the straw, that's for sure. I hope that further fine tuning of the metering parameters will make things even better. The insert is well worth the money.
I prefer to have a dozen or two kernels scattered on a piece of paper. It makes it easy to add one or two to the pan if the charge is .02 or .04 gr short of ideal. If it's that close, I don't even re weigh the charge; I just dump it into the case. Outside .04gr, I correct and re weigh.
With my McDonald's straw, it was hard to be within .04gr half the time. With my new brass insert, the charges are much more consistent and therefor easier to fine tune. Here is a graph showing 17 test throws with the Chargemaster set to 25.0gr Varget. Most throws are a tiny bit under and that's the way I like it since adding a kernel or two from the piece of paper on my bench is much easier than trying to pick one or two kernels out of the pan to reduce an overthrow.
The results aren't perfect, but it's an improvement on the straw, that's for sure. I hope that further fine tuning of the metering parameters will make things even better. The insert is well worth the money.
Last edited:
Nice test. I found very similar results when I initially started adding the small sleeve to the main insert a couple of years back. Most charges fell within 2-3 kernels of each other when testing 40.5 H4340.
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