In that price range you could step up to the RCBS 1500 scale. That way if you ever though about going to a scale/dispenser combo you would only need to get the RCBS dispenser unit. Plus it has more capacity. Really, scales in this price range are good for +/- .01 of a grain variance at best and they all do that. Why do you want to replace your 750?
I think you mean +\- .1 gn
Gempro 250 or 500 is a pretty good scale for the money and a good one will read +\-.05 if you stay on top of the drift.
I just don't feel like it's very accurate and have to recalibrate a lot.
I hate to be the bearer of bad news but for this price range you have pretty normal results. To get a digital scale that weighs each charge exactly youre looking at 1000.00 to 2000.00 dollars. One issue I forgot to mention is the "I drop a charge in the pan and weght it. Take it off the scale then place the pan back on the scale it gives me a different weight" Issue is the type of weighing system the low dollar scales have. They have a strain gauge type of system that is affected by different side loadings on the pan. In short..if you dont replace the powder pan on the scale pan on the EXACT SAME SPOT you put a different side loading on the system and you get a different weight. Only the big dollar scales with the magnetic type of weighing system will give you the same weight every time you put the powder pan on the scale no matter where you put it on the scale pan. Take a look at the Sartorious GD 503 article in the " Gear Reviews and Buyers Guide" on the ACCURATE SHOOTER website.