The Firing Line Forums - View Single Post - lee pro-1000 autodisk question

Sigma 40 Blaster · December 2, 2007, 04:09 AM

I have to agree with TexasSeaRay, do not trust the Auto-Disk conversion chart. I use Unique for my handgun loadings and I have to use two cavity sizes bigger than the chart says to use.

Midway has a cheap little digital scale for $25, replace the batteries as soon as you get the scale with new quality batteries and you're good to go. The powder...density I guess, seems to change a little from container to container. I verify that the disk is still throwing about the same charge (.2 variance tops) and go to town re-checking periodically. Keep the hopper full of powder and crank em out.

I loaded approx. 500 .380 bullets trusting that the Auto Disk was correct, 3 out of 5 is a very light charge. No squibs yet but I don't shoot it much because it's nerve racking. You're not likely to do an overcharge but a squib can be just as dangerous, if not more. Spend a little more time and money to save yourself time, money, and possible injury or worse by getting a scale.

December 2, 2007, 04:09 AM	#3
Sigma 40 Blaster Senior Member Join Date: July 1, 2007 Location: East Texas Posts: 997	I have to agree with TexasSeaRay, do not trust the Auto-Disk conversion chart. I use Unique for my handgun loadings and I have to use two cavity sizes bigger than the chart says to use. Midway has a cheap little digital scale for $25, replace the batteries as soon as you get the scale with new quality batteries and you're good to go. The powder...density I guess, seems to change a little from container to container. I verify that the disk is still throwing about the same charge (.2 variance tops) and go to town re-checking periodically. Keep the hopper full of powder and crank em out. I loaded approx. 500 .380 bullets trusting that the Auto Disk was correct, 3 out of 5 is a very light charge. No squibs yet but I don't shoot it much because it's nerve racking. You're not likely to do an overcharge but a squib can be just as dangerous, if not more. Spend a little more time and money to save yourself time, money, and possible injury or worse by getting a scale.