Another Chargemaster Tip

[rwj]

the first thing a br shooter will ask, "did you have flags out?"
at 300 it will be noticeable.
there are IMHO, three levels of br shooters.
thrown charges, poorly results plus or minus .3 or more seldom makes the top 10
thrown charges, better thrower, developed skill in throwing top 10 is possible
skilled chargemaster users, top 10 not an issue, missing wind call is bigger issue.
if you are not going to scale to .01/.02m then a chargemaster , tuned seems to be the ticket.
the issue IMHO is the the best powder thrower will still screw up with a powder that foes not meter well.

Wind reads are made via foliage adajacent to the range... not using flags... yet!

 

[fatelvis]

At what amount of charge weight variation do you detect a change in POI? I want to start shooting at 600 yards plus and curious to know if I too need a scale having .02 resolution...

The charge master straight out of the box throws accurate enough charges for 600 yards. Reprogramming will speed it up, but it is plenty accurate enough for me! I guess it boils down to how persnickety you want to be

 

[retired]

for 600 yard mil with a 2 moa 10 ring(12 "), yes,
for 600 br with a 2.75" 10 ring, i do not think so.

The charge master straight out of the box throws accurate enough charges for 600 yards. Reprogramming will speed it up, but it is plenty accurate enough for me! I guess it boils down to how persnickety you want to be

 

[Ledd Slinger]

At what amount of charge weight variation do you detect a change in POI? I want to start shooting at 600 yards plus and curious to know if I too need a scale having .02 resolution...

Depends on the rifle. I usually ladder test in 0.2gr increments. A high resolution scale is not required for that type of testing, it just gives me peace of mind that the charge weights are extremely uniform once a load in a good forgiving node is determined.

Heres a pic of the last 100 yard short ladder test I conducted with one of my hunting rifles. Looks good at 100, but I like to take the ladder test out to around 600 yards to be sure the vertical stays at a minimum level. I will usually adjust the scope off center to avoid hitting center bull. This ensures I always have a clear small point of aim while shooting a group. I also prefer the grid style targets to verify consistent reticle alignment during testing and practice.

 

[7887mm08]

I'm not going to be the one to start the poll, but if we took one, I believe you would be the ONLY one polled that could say that.

Your Chargemaster is probably the only one in existence that has never over, or under thrown a powder charge. I've NEVER had a reloading session where mine didn't under, or over throw powder charges. With the mods, and straw, or mods and stock tube. And everyone that I know, have similar experiences.

I am, however, happy for you.

I agree 100%

 

[jimmymac]

View attachment 1051008 A Custom Delrin sleeve, and a little re-programing.

I'd buy one of those in a heartbeat.

 

[Just Dave]

From a recent reloading session where I filled 400 cases of 50BMG with 248 gr of powder. The CM was set at 248.0 , but it alwaya throws short according to my Sartorius 64is, which is fine, because I use a dandy trickler to finish off. Once warmed up, the CM consistently dispensed charges ranging from 247.910, to 247.980, with a majority landing right around 247.930, which was about perfect, as it usually only took 2-3 more kernels to push the Sartorius over 248, to right around 248.015-248.050 final charge weight. (No, I'm not cutting kernels in half)

Now, I'm not sure what problems people have with these things, but I will say that all my scales sit in the corner of my garage, sheltered from drafts, with no fluroscent bulbs anywhere in the house, and everything is powered by an UIPS. So that may play a big role in keeping drifting to near nothing.
.

 

[Ledd Slinger]

From a recent reloading session where I filled 400 cases of 50BMG with 248 gr of powder. The CM was set at 248.0 , but it alwaya throws short according to my Sartorius 64is, which is fine, because I use a dandy trickler to finish off. Once warmed up, the CM consistently dispensed charges ranging from 247.910, to 247.980, with a majority landing right around 247.930, which was about perfect, as it usually only took 2-3 more kernels to push the Sartorius over 248, to right around 248.015-248.050 final charge weight. (No, I'm not cutting kernels in half)

Now, I'm not sure what problems people have with these things, but I will say that all my scales sit in the corner of my garage, sheltered from drafts, with no fluroscent bulbs anywhere in the house, and everything is powered by an UIPS. So that may play a big role in keeping drifting to near nothing.
.

Wow! You must have had the powder factory working overtime to keep up with you on that handloading session