
Availability: In Stock
Current Stock: Out of stock
The Lyman MSR Precision Die System 3-Die Set for 300 AAC Blackout is built for reloaders working with modern sporting rifles chambered in this popular subsonic cartridge. Unlike generic die sets cobbled together from standard components, Lyman engineered this set specifically for MSR platforms, so you get dies that account for the unique demands of 300 Blackout ammunition—whether you're loading for suppressed shooting, hunting, or range work.
This 3-die set includes a small-base sizing die that ensures consistent, smooth chambering in your rifle, plus a separate taper crimp die for a secure, controlled bullet grip. The small-base design is the key difference here: it resizes the cartridge case to tighter dimensions than standard dies, which translates to better reliability and less headspace variation when you're running tighter MSR tolerances. For 300 Blackout shooters who prioritize consistency and repeatability, that matters.
An Ammo Checker cartridge "Go" gauge is included, so you can verify your finished rounds headspace correctly without guessing. The set comes in a sturdy clear storage case—practical for keeping your dies organized and visible—with a black finish that fits the aesthetic of your reloading bench and your rifle. This is a serious tool for serious reloaders, not a stripped-down compromise.
| Product Name | Lyman MSR Precision Die System 3-Die Set for 300 AAC Blackout |
| Model Number | 7690104 |
| Caliber | 300 AAC Blackout |
| Die Count | 3 |
| Included Accessories | Ammo Checker cartridge "Go" gauge, storage case |
A small-base die resizes the cartridge case to tighter, smaller dimensions than a standard die. This is beneficial for modern sporting rifles, which often run tighter tolerances. Small-base sizing helps ensure your reloaded ammunition chambers smoothly and consistently in your MSR platform rifle.
This set is engineered specifically for modern sporting rifles (MSR platforms) chambered in 300 AAC Blackout. If you're reloading for a bolt-action or other non-MSR rifle in this caliber, verify compatibility with the manufacturer.
The Ammo Checker cartridge "Go" gauge allows you to verify that your finished reloads headspace correctly. This is a quick, reliable way to check that your ammunition will chamber properly in your rifle without guessing.
This die set includes the dies and a headspace gauge, but you'll also need a reloading press, dies for additional steps (like powder charging and bullet seating, depending on your press setup), and other standard reloading equipment and components. Confirm the full list of tools required for your specific reloading setup.

SKU: 115759047 • Width: 5.3in • Height: 1.8in • Depth: 8.9in • Weight: 2.08oz





Availability: In Stock
Current Stock: Out of stock
The Lyman MSR Precision Die System 3-Die Set for 300 AAC Blackout is built for reloaders working with modern sporting rifles chambered in this popular subsonic cartridge. Unlike generic die sets cobbled together from standard components, Lyman engineered this set specifically for MSR platforms, so you get dies that account for the unique demands of 300 Blackout ammunition—whether you're loading for suppressed shooting, hunting, or range work.
This 3-die set includes a small-base sizing die that ensures consistent, smooth chambering in your rifle, plus a separate taper crimp die for a secure, controlled bullet grip. The small-base design is the key difference here: it resizes the cartridge case to tighter dimensions than standard dies, which translates to better reliability and less headspace variation when you're running tighter MSR tolerances. For 300 Blackout shooters who prioritize consistency and repeatability, that matters.
An Ammo Checker cartridge "Go" gauge is included, so you can verify your finished rounds headspace correctly without guessing. The set comes in a sturdy clear storage case—practical for keeping your dies organized and visible—with a black finish that fits the aesthetic of your reloading bench and your rifle. This is a serious tool for serious reloaders, not a stripped-down compromise.
| Product Name | Lyman MSR Precision Die System 3-Die Set for 300 AAC Blackout |
| Model Number | 7690104 |
| Caliber | 300 AAC Blackout |
| Die Count | 3 |
| Included Accessories | Ammo Checker cartridge "Go" gauge, storage case |
A small-base die resizes the cartridge case to tighter, smaller dimensions than a standard die. This is beneficial for modern sporting rifles, which often run tighter tolerances. Small-base sizing helps ensure your reloaded ammunition chambers smoothly and consistently in your MSR platform rifle.
This set is engineered specifically for modern sporting rifles (MSR platforms) chambered in 300 AAC Blackout. If you're reloading for a bolt-action or other non-MSR rifle in this caliber, verify compatibility with the manufacturer.
The Ammo Checker cartridge "Go" gauge allows you to verify that your finished reloads headspace correctly. This is a quick, reliable way to check that your ammunition will chamber properly in your rifle without guessing.
This die set includes the dies and a headspace gauge, but you'll also need a reloading press, dies for additional steps (like powder charging and bullet seating, depending on your press setup), and other standard reloading equipment and components. Confirm the full list of tools required for your specific reloading setup.
SKU: 115759047 • Width: 5.3in • Height: 1.8in • Depth: 8.9in • Weight: 2.08oz
