Has anybody compared the RCBS CHARGE MASTER to the Denver Insturments MXX123

[Rustystud]

There have been many posts about electronic scales and powder dispensers. Most have compared the RCBS ChargeMaster 1500 and Lyman 1200. There have been post comparing the different electronic scales vs Mechanical beam scales.

From my reading it appears the Denver Insturments MXX 123 and the RCBS ChargeMaster 1500 that uses the RCBS 750 Scale are the favored options in powder measuring.

Is there a comparison in performance or are these two machines in their own seperate leagues?

Rustysud

 

[memilanuk]

The Chargemaster is a typical reloading scale - +/- 0.1gr

The VIC/MX-123 scales are milligram scales - +/- 0.001 gram, or approx. 0.015gr - usually indicate to +/- 0.02gr, or a little over 5x as accurate - literally one or two kernels of most common short-cut extruded powders.

Not really in the same ball park. I have both,Chargemaster 1500 & a VIC-123), and the Chargemaster, while fairly decent and *usually* accurate within half a tenth,+/- 0.05 of what it reads), it *does* vary +/- 0.1g over enough samples. The VIC-123 is so sensitive, though, that you have to tweak the environmental settings so it doesn't pick up every stray mouse fart from across the room - which reduces its responsiveness somewhat and it's still very twitchy in response to little things... like you exhaling in its general direction, or *any* EMI in the area, and needs re-zeroed frequently in my experience. If I don't have to weigh charges out on the VIC-123, I don't, as it raises the level of tediousness involved in trickling charges to a whole new plane.

YMMV,

Monte

 

[Rustystud]

Monte:

Your reply is about what I expected. I have several LR shooter custonmers who use the Denver Insturments MXX123. I have several others who use lessor scales and shoot high master. I have ordered a RCBS Chargemnaster and will see if it gives me any lower ES and tighter groups than with my mechanical Beam scale. I use a Quick measure, Hornaday LNL measure, a Lyman 55 ,culver)in conjunction with a trickler. I thought I was getting less than.005 with the beam scale but now I think I may have been fooled for all these years.

Nat

 

[steveyrock]

I didn't see the effect of the deviations in charge weights at 1 and 200 yds with the Chargemaster. I did see it at 500 yds when I first started using the machine.I thought I could get away with double checking every three charges on a good beam scale but the groups left me know I needed to set the charges a little short on the Chargemaster and trickle them up on the beam scale to finish them off. all of them.

I would not rely on the chargemaster scale alone for long yardage benchrest. My machine will throw many charges right on the money and than put one out as much as 3 /10ths plus or minus.