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Why don't you set the throw .2 lower? If it is consistent you should be good to go.My Chargemaster throws heavy (+.2 - +.3 grains) consistently using RL19 & RL22. Once in a while it will send out slow only, taking ~50 seconds to feed a charge.
Seems to work better when it's room temperature rather than the 40 degrees in my garage....
I'll look for the straw mod.
Otherwise, don't know why I never had one earlier.
When I need dead nutz, I measure out with the CM and then finish on my Ohaus balance beam scale.
Never played with the CM, but my route is a hornady throw that I DO NOT throw in the case, I throw it on the scale (in a pan), then pour to the case. Tad slower, but cheap and works for when it REALLY want it EXACT.
Why don't you set the throw .2 lower? If it is consistent you should be good to go.
I have a CM and I like it very much. When using a extruded powder it has a tendency to throw a couple kernels over. It holds the scale at the weight it is set to distribute, which is just an idiosyncrasy it has--if you pick the scale pan up and sit it back down on the scale it will show you the true weight. The straw modification minimizes this tendency to a large degree. Other than this mine works very well, and it isn't effected by flourescent lights or my cell phone, both of which I use often. FYI I have a laboratory scale that is accurate way beyond what is needed for reloading, and it confirms that my CM scale is accurate to the advertised .01
I formerly had a Pact, and it worked well, but had the challenge of needing to go though a rather lengthy calibration process, every time you fired it up, or changed powders. It was also slightly slower than the RCBS
I have taken samples of the powders I was loading a lot of (all extruded) to a lab and put them on a scale, one to find out: one- what is the weight of one kernel and two- how much variation there was between kernel weight, one of the things that surprised me was the similarity of kernel weights that were of very different burn rates! But, like you, I wanted to know the average weight of a kernel as it made it a lot easier to "pluck for accuracy"-I know -you know what I mean!I did originally but in my experience that's poor practice. Like having a scope that's not zeroed and aiming accordingly or having a bad slice and teeing off angled left of the fairway. Did a lot of both.
Found a straw that fits and now it's balls-on. What surprised me is learning that 1 kernel of slow extruded powder (RL22 or VV570) can be as much as 0.3 grains, while most are 0.1.
I have taken samples of the powders I was loading a lot of (all extruded) to a lab and put them on a scale, one to find out: one- what is the weight of one kernel and two- how much variation there was between kernel weight, one of the things that surprised me was the similarity of kernel weights that were of very different burn rates! But, like you, I wanted to know the average weight of a kernel as it made it a lot easier to "pluck for accuracy"-I know -you know what I mean!