Eppie said:I figured that I could always use a progressive press as a single stage until I got comfortable with each step and then wanted more bullets faster. Three years later I'm glad that I chose a progressive press because once you've got the basics down it's the only way to go in my book.
This depends on the machine. A Dillon 550, being manually indexed, is easy to use as a single-stage. The Lee Classic Turret can also be set up for manual indexing. On one that won't let you defeat automatic indexing, you have to have two stations in a row that you can move the components in or out of. Awkward on some of them.
That depends on what you were expecting to have happen. Do stick powders meter to the exact tenth of a grain? Not normally, no. But the reason is the cylindrical grains can pack in different geometries, while spheres cannot. On the other hand, as stick powders pack tighter, their ignition rate decreases, so there is some self-compensation to this and if you pick the right powder for your chambering and bullet weight it can work very well. Hatcher remarked that the National Match ammunition (.30-06) he loaded one year used a long stick powder that could only be dispensed by the arsenal loading machines to an extreme spread of 1.7 grains, yet it proved to produce more accurate ammunition than another, similar burn rate powder with finer grains that he tried that could be dispensed to an extreme spread of just 0.6 grains. Competitors who pulled the ammo complained about the weight spread, but it was used to set several records that year.Eppie said:A word or warning, if you go with a progressive press, use ball powder. I got frustrated and wasted time and money trying to make stick powder work. It won't measure well and will give you grief.
I have pulled down Federal Gold Medal Match .308 Win ammunition loaded with Sierra 168 grain MatchKings and found an extreme spread of about 0.4 grains within each lot. It uses IMR 4064. I also pulled down some Winchester Supreme Match ammo made about fifteen years ago, also loaded with the 168 grain Sierra MatchKing at that time and using a charge of 748. It's charge weights had an extreme spread that was an astonishingly tiny 0.05 grains (I used a lab scale to measure that). But it never had the accuracy of the Federal load.
So this is a tricky thing. Charge weight alone is not always the determining factor. The Norma manual, for example, says a powder kept and loaded in over 80% RH will produce about 12% lower peak pressure than a sample from the same lot stored in low RH. The bulk density of the powder also increases about 1-1.5% in high RH, but that's not enough to account for the pressure change; that's down to interaction with the water.
With stick powders, if you pick the right one for your chambering and bullet weight, you can sometimes get excellent charge weight compensation by the change in ignition rate with change in packing density. This is why volumetric dispensing sometimes produces better ammunition accuracy than charge weighing.
Incidentally, if the above bothers you about stick powder, you can get both close weight and volumetric dispensing of stick powder using the specially designed JDR Quick Measure. They make an adapter that works with Dillon presses to replace the Dillon powder dispenser.
Eppie said:I choose to go with the Hornady Lock-n-Load AP because I liked the bushing system that makes changing caliber/dies a snap. I'm not sure if you can use other maker's dies with the Dillon? If you're locked into their dies that should be a deal breaker. Many of the best dies are not made by Dillon.
Only the Dillon Square Deal press, which is only for handgun and short, straight wall carbine ammunition, uses special dies. All the other Dillon presses have the standard 7/8×14 die threads and can use any brand of die. The Dillon pistol dies have a somewhat more generous mouth radius than some other brands, which avoids case mouths catching on them when everything is vibrating and shaking from going fast. That's the only issue I'm aware of with standard dies in the Dillon 550, 650, and 1050 presses.