Sun Aug 21, 2016 7:46 am
MadPick wrote:I'll tell you what, this settings update has really changed my perspective on the Chargemaster. I was getting so frustrated with it that I came very close to buying one of the competitors' products as well, just in the hope that it would be better. (Though the reviews don't show that any of them are perfect.)
Anyhow, I tried running some Benchmark powder through it the other day. Benchmark is a stick powder, but it's cut into fairly small pieces. It worked very well.
The Chargemaster is still kinda temperamental, though. It was running along just fine, dispensing fast and perfect charges, then it suddenly started throwing a LOT of overcharges, sometimes by as much as half a grain. I pulled the power cord to "reboot" it, but that didn't fix it. I hadn't turned on any extra lights or fired up any new electronics in the room, so I really can't explain it.
I finally pushed the straw farther back into the tube (as Eric explained in the video), and that fixed it. I had to push the straw WAY back; see the pic below. Look for the red stripe on the straw, and see how close to the back of the tube it is. This photo is taken looking straight down into the powder hopper. There is only a very tiny gap at the back, probably less than 1/8".
But hey, it worked . . . and even though it was a little slower to throw the charge, it was still fairly fast.
Sun Aug 21, 2016 7:49 am
Sun Aug 21, 2016 8:17 am
MadPick wrote:Deadshot2, with the current method I can just pull the straw in and out to adjust the "window." Is there an advantage to the method you describe?
Tue Aug 23, 2016 10:08 pm
Mon Sep 12, 2016 9:00 am
Sun Sep 25, 2016 5:32 pm
dogfish wrote:Thanks for this. I'll try it tonight.
Thu Sep 29, 2016 7:54 am
Thu Mar 30, 2017 12:45 pm
Different shooting disciplines require different levels of precision. I shoot F-Class, and yes, I need to be that precise. I don't spend that much time loading though, I use a Prometheus II to load my ammo. The video was made for those that need the precision, cut can't afford a more expensive scale......
Not meaningless at all. I compete at 1,000 yards regularly and it matters, that's the reason I have a Sartorious scale. If you are in the middle of a node, it won't matter much, but if you travel like I do and find yourself on the edge of a node due to temperature differences, it's better to have your powder charge as consistent as possible so that you can stay in the node even if you are on the edge....
"Why wouldnt you transfer the pan at 29.8 to the Sartorious and trickle the remaining as the weakest component is the rcbs scale." I do, but not everyone has a $1,000+ scale, that's why I was showing how they can get the most out of their chargemaster.
There is good video on you tube on reprogramming RCBS Chargemaster, although I have to say it really depending on your powder charge. I had to experiment to find right values. I also did straw mod and it improved, but wasn't perfect, I tried cutting the end of straw jagged and it worked well at first but became worse later. Also this mod was horrible because I ended up spilling powder all the time when I removed pan. A straight straw is better. Finally I decided to try something similar to Erik's mod, except I picked a smaller 5.7 casing and cut it in half, chucked it in drill and sand it a little on the outside and crimped the neck to make it even smaller and then inserted inside, it fits well. First 20 or so throws were exactly 18gr and later it started to deviate. It seems like any mod I do works really well initially and then gets worse. I think to really prevent overthrows I really need to restrict powder flow, so when it trickles, it doesn't drop 4-5 kernels at a time, but 1-2 at a time at last trickle stage. Here's my last results from 50 throws. 30 charges were right at 24.5gr, combined 20 charges (40%) were overthrown. 13 charges (26%) deviated +0.1gr and 7 charges (14%) deviated 0.2gr, this was with Accurate 2495.
Sat Apr 29, 2017 8:45 pm
Sat Jun 24, 2017 8:03 pm
Sat Nov 17, 2018 4:33 pm