Order
Powder Measure: You will need to be able to accurately measure and dispense the appropriate charge (weight in grains) of powder for your ammunition. Powder measures are either stand alone units or units that attach to the press and are actuated by the case. Certain measures work best with certain types of powders. Feel free to ask a question on the forum regarding which of these measures may be the best choice for your particular powder of choice. In general though, any quality powder measure will provide acceptable results with a wide range of powders.
Powder Scale: It is vitally important to spend the money on a good quality scale! You MUST be able to verify that your powder measure is dispensing an accurate, consistent powder charge into your cases! Either a balance beam type or digital scale will do the job, just please, don't skimp here. . . buy quality!
Calipers: You'll need a set of calipers to take various measurements, including case trim length and overall cartridge length. These are available in both dial and digital configurations. Both work, with digital being a bit quicker to read.
Case Lubricant: This only applies to bottleneck (usually rifle) cases. Bottleneck cases must be lubed prior to resizing in order to avoid the case becoming stuck in the die under the pressure of the resizing process. Straight walled cases generally do not need to be lubed prior to resizing due to the carbide surface found in most straight wall case resizing dies. Dillon, RCBS, Hornady, and Imperial sizing wax are all good choices.
Various Case Preparation Tools: There are a few other case preparation tools, some that you need, and some that aren't necessary, but can be added later. After trimming, case mouths need to be deburred. The tool that is used to deburr the case mouth will generally also chamfer the inside of the case mouth. Chamfering allows for easier insertion of the bullet in a rifle case, since the case mouth isn't flared like it is when reloading handgun ammunition. There are hand tools available that do the job