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Availability: In Stock
The Lyman 7690108 MSR Precision 4-die set for 450 Bushmaster gives reloaders the specialized tooling they need to produce consistent, reliable ammunition for their big-bore AR platform. Unlike generic die sets designed for traditional rifle cartridges, this set is engineered from the ground up for modern sporting rifle pressures and chamber tolerances — a significant advantage if you're running a 450 Bushmaster and want ammunition that chambers smoothly and groups tight.
The four-die configuration includes a small base sizing die that ensures your cases chamber reliably in your MSR, plus a dedicated taper crimp die for a secure bullet grip that won't shift under recoil. That precision counts downrange and on the bench. An ammo checker cartridge "Go" gauge rounds out the set, so you can verify your finished rounds will actually chamber before you fire them — a smart safety step when you're building your own ammunition.
Everything ships in a sturdy clear storage case that keeps your dies organized and visible in your reloading setup. The black finish doesn't mean much functionally, but it's a small nod to the rifles you're loading for. If you're serious about 450 Bushmaster accuracy and consistency, purpose-built dies make a real difference.
| Cartridge | 450 Bushmaster |
| Number of Dies | 4 |
| Die Type | Small base sizing die; taper crimp die |
| Accessories Included | Ammo checker "Go" gauge; storage case |
| Brand | Lyman |
| Model | 7690108 |
Yes — these dies are specifically engineered for 450 Bushmaster and MSR platforms, including the small base sizing required for reliable chambering in modern sporting rifles.
This Lyman MSR Precision set is designed for MSR-specific pressures and tolerances, with a small base sizing die and dedicated taper crimp die — features optimized for AR platforms rather than traditional bolt-action rifles.
Yes — the included "Go" gauge lets you verify your finished rounds will chamber in your rifle before firing, adding a quality control step that can catch mistakes on the bench.
The set includes four dies, an ammo checker cartridge "Go" gauge, and a clear protective storage case.
SKU: 115719597 • Width: 8.8in • Height: 1.8in • Depth: 9.1in • Weight: 2.34oz
Availability: In Stock
The Lyman 7690108 MSR Precision 4-die set for 450 Bushmaster gives reloaders the specialized tooling they need to produce consistent, reliable ammunition for their big-bore AR platform. Unlike generic die sets designed for traditional rifle cartridges, this set is engineered from the ground up for modern sporting rifle pressures and chamber tolerances — a significant advantage if you're running a 450 Bushmaster and want ammunition that chambers smoothly and groups tight.
The four-die configuration includes a small base sizing die that ensures your cases chamber reliably in your MSR, plus a dedicated taper crimp die for a secure bullet grip that won't shift under recoil. That precision counts downrange and on the bench. An ammo checker cartridge "Go" gauge rounds out the set, so you can verify your finished rounds will actually chamber before you fire them — a smart safety step when you're building your own ammunition.
Everything ships in a sturdy clear storage case that keeps your dies organized and visible in your reloading setup. The black finish doesn't mean much functionally, but it's a small nod to the rifles you're loading for. If you're serious about 450 Bushmaster accuracy and consistency, purpose-built dies make a real difference.
| Cartridge | 450 Bushmaster |
| Number of Dies | 4 |
| Die Type | Small base sizing die; taper crimp die |
| Accessories Included | Ammo checker "Go" gauge; storage case |
| Brand | Lyman |
| Model | 7690108 |
Yes — these dies are specifically engineered for 450 Bushmaster and MSR platforms, including the small base sizing required for reliable chambering in modern sporting rifles.
This Lyman MSR Precision set is designed for MSR-specific pressures and tolerances, with a small base sizing die and dedicated taper crimp die — features optimized for AR platforms rather than traditional bolt-action rifles.
Yes — the included "Go" gauge lets you verify your finished rounds will chamber in your rifle before firing, adding a quality control step that can catch mistakes on the bench.
The set includes four dies, an ammo checker cartridge "Go" gauge, and a clear protective storage case.
SKU: 115719597 • Width: 8.8in • Height: 1.8in • Depth: 9.1in • Weight: 2.34oz