Hornady Custom Grade Series I 300 Remington Ultra Mag 2-Die Set (546365) gives precision rifle reloaders a full length sizing and seating solution tailored specifically to the 300 Remington Ultra Magnum cartridge. This 300 RUM full length 2 die set is ideal for long range shooters and hunters who want repeatable sizing and bullet seating with dependable Hornady quality.
Key Features
- Manufacturer part number: 546365
- Cartridge: 300 Remington Ultra Magnum
- Die series: Custom Grade Series I, rifle
- Die count: 2 dies in set
- Included dies: full length sizing die and bullet seating die
- Bullet diameter compatibility: 0.308 inch projectiles for 300 RUM
- Die material: steel construction
- Interior finish: hand polished internal surfaces to protect brass
- Expander design: threaded, replaceable expander assembly
- Decapping system: hardened steel decapping pin designed for crimped primer pockets
- Lock rings: Sure-Loc rings with wrench flats and non-marring locking screws
- Retainer: locking retainer spring for quick disassembly and cleaning
- Packaging: supplied in a labeled die box
Special Features
- Full length sizing die returns 300 Remington Ultra Mag brass to proper dimensions for smooth chambering in field and precision rifles.
- Elliptical expander reduces case neck friction and stretching during sizing for more uniform neck tension.
- Zip-style or threaded spindle design helps prevent slippage and allows fast, precise decapping rod and expander adjustments.
- Bullet seating die uses an in-line seating sleeve that aligns bullet and case before pressure is applied for straighter loaded rounds.
- Integrated optional crimp feature in the seating die lets you apply a roll or taper crimp during seating or run with no crimp as needed.
- Sure-Loc lock rings with wrench flats make it easy to set and lock die adjustments without damaging die threads.
- Simple retaining ring and spring design allows quick breakdown of the die body for cleaning without special tools.
Practical Benefits
- This Hornady Custom Grade Series I 300 Remington Ultra Mag 2-Die Set (546365) fits reloaders who want one dedicated sizing die and one dedicated seating die for streamlined setup on single stage or turret presses.
- The full length sizing setup works with a wide range of 300 RUM rifles where you need reliable feeding and consistent chambering from resized brass.
- Smooth internal finishes and an elliptical expander help you load more cases per session with less effort on the press handle and more consistent neck tension for long range accuracy.
- The in-line seating sleeve and optional crimp feature work well for building loads compatible with box magazines, long range match use, or hunting ammunition that must stay secure under recoil.
- If you load for a 300 Remington Ultra Magnum rifle and want a matched, durable die pair for consistent sizing and seating, the Hornady Custom Grade Series I 300 Remington Ultra Mag 2-Die Set (546365) is a solid fit for serious reloaders.
| MANUFACTURER | HORNADY |
| CALIBER | 300 RUM |