The Hornady PTX Powder Measure Stop (brand part no. 290049) is the add-on component that lets a reloader adjust case flare on the Case Activated Powder Drop from Hornady. Two adjustment screws, one at the top and one at the bottom, set how much the case mouth flares as the powder drop does its work. Flare is what lets a bullet start into the case without shaving material from its base, so it is worth dialing in on a progressive press. Hornady supplies the stop as standard with new AP presses and with the Case Activated Powder Drop, so this listing suits an owner who needs a spare or wants to add one to an older setup. It is a small part that keeps a powder-drop station working cleanly.

Key Specifications

• The stop is an add-on component for the Case Activated Powder Drop, not a standalone powder measure.
• Flare is set with top and bottom adjustment screws, which let the reloader dial in how much the case mouth flares.
• It comes standard on new Hornady AP presses and on the Case Activated Powder Drop, so this listing serves as a replacement or an add-on.
• The powder drop it attaches to dispenses a charge only when a case is present, the behavior the stop works alongside.
• That powder drop is designed for the Lock-N-Load AP and fits any progressive press with 7/8-14 threads.
• Hornady publishes a PDF instruction sheet for the stop, so setup steps come straight from the maker.

Frequently Asked Questions

What does the stop attach to? It is an add-on for Hornady’s Case Activated Powder Drop, the powder measure that only dispenses a charge when a case is present.

How is case flare adjusted? With the top and bottom adjustment screws on the stop. Hornady publishes an instruction sheet for it, so follow that for the setup.

Is the stop included with the powder drop? Hornady says it comes standard with new AP presses and with the Case Activated Powder Drop. This listing is for an owner who needs a replacement or wants to add one.

Buy the Hornady PTX Powder Measure Stop

A progressive press runs better when every station is set up right, and flare is one of the settings that shows up in the finished round. Order the stop with other reloading accessories from our Lubbock, Texas gun shop for fast direct shipping.