Go digital if you can afford, but avoid the Lyman 1000XP - I got that to replace the Lee Safety (beam) scale. After having no end of calibration problems (drifts up to half a grain), I called Lyman. They said:
- wipe it down with Windex to get the static off it,
- absolutely no breeze in the area
- firm, flat surface
- do not jar it (so don't have it on the reloading bench that the press is on, unless the bench is completely solid
- no florescent lights nearby (dang, my work light has a CF bulb)
- no cellphones or radio equipment in the room.
- plug in only, no battery
Listen, if this scale was capable of accurately measuring a ten-thousandth of a grain, these measures would be perfectly acceptable, but way too much effort for 0.1gr.
To give you an idea how infuriating this scale was, here's a typical example:
- remove the tray
- zero the scale
- press and hold Calibrate until display reads "CAL"
- place the 20gram mass on the scale
- wait 5-7 seconds, then press and release Calibrate button.
- Remove mass, press Zero.
- Place back on scale
Any guesses what the scale should read? Would you believe anywhere between 19.995 and 20.015? (by the way, the final digit will always be a "0" or "5").
So if I cannot trust it to read the proper amount, then what I have to focus on is using one reference load, to ensure all charges weigh the same, even if I don't know exactly what that amount would be:
- Dispense a load (yep, looks to be about the right amount of powder)
- Weigh the powder on the freshly nearly-calibrated scale (yep, looks about right)
- get the grams measurement of the charge on the tray (more accurate)
- put that powder back in your reference casing, and dispense another charge to match that weight - pour into a new casing
- re-weigh the reference charge. If the reference, the new charge, and the reference again all weigh the same, your new charge is valid. If the first and second references don't match, the &%$ scale drifted again, re-weigh the ref, new charge (and adjust quantity), and ref again, in an endless loop until all three have the same number.
Check the reviews for all the scales on Midway, Cabelas, etc. I hear good things about the PACT, and pretty good things about the RCBS. In fact, Frontier has an Ad selling the RCBS for $20 less than I usually see it:
http://www.canadiangunnutz.com/forum/showthread.php?t=492005
Good luck!