16 Best 300 Prc Rifles of 2026 For Match Grade Precision

1

RCBS MatchMaster Duo Die Set 300 PRC - MatchMaster Seating

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  9.0
• Brand
  RCBS

Key specs2

Die Set Components

• Full-length sizing die
• Micrometer bullet seating die

Bushing Requirement

No bushings required

Pros & cons42

Pros

• Includes both a micrometer-adjustable seating die and a full-length sizing die
• Operates without separate neck bushings for a streamlined reloading workflow
• Built in the USA with precise tolerances for match-grade handloads
• Micrometer dial allows precise bullet seating depth adjustments

Cons

• Non-bushing configuration lacks custom neck tension tuning across varied brass lots
• Set does not include a dedicated case crimp die

2

Redding Reloading Full Length Die Set | Durable Steel Smooth

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  8.7
• Brand
  Redding

Key specs2

Die Features

• Internal bullet guide
• Integrated crimp ring
• Specific seating plug included

Construction Material

Heat-treated steel

Pros & cons42

Pros

• Durable steel construction designed specifically for bottleneck cartridges
• Internal bullet guide aligns the projectile squarely into the case mouth
• Built-in crimp ring allows securing bullets without a separate die
• Includes full-length sizer and proper seating plug for reliable function

Cons

• Standard seating stem lacks a micrometer scale for precise depth recording
• Sizing die does not feature interchangeable neck sizing bushings

3

Lee Precision 91494: Factory Crimp Die 300 Prc

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  7.3
• Brand
  Lee Precision

Key specs1

Crimp Functionality

Applies a dedicated factory crimp on completed rounds to maintain bullet grip without buckling case shoulders.

Pros & cons32

Pros

• Applies a uniform crimp on 300 PRC cases to secure heavy match bullets
• Tolerates slight variations in case trim length during crimping
• Helps prevent bullet setback inside high-recoil magnum magazines

Cons

• Dedicated solely to crimping and does not size the case neck or body
• Requires an extra station or separate pass on a single-stage reloading press

4

Dillon Precision Rifle - Caliber Conversion kit | XL750/XL650 (300

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  7.9
• Brand
  Dillon Precision

Key specs2

Press Compatibility

Dillon XL650 and XL750

Tooling Role

Supplies the shellplate, locator buttons, and powder funnel adapter to run 300 PRC brass on compatible Dillon progressive machines.

Pros & cons32

Pros

• Specifically designed to adapt Dillon XL750 and XL650 progressive presses to 300 PRC
• Facilitates high-volume reloading of magnum cartridges with progressive efficiency
• Precision parts ensure reliable case feed and smooth station transitions

Cons

• Fits only Dillon XL750 and XL650 presses and cannot be used on single-stage setups
• Does not include reloading dies or powder measure funnels

5

LEE Precision 92033: 300 PRC Quick Trim Die

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  9.6
• Brand
  Lee Precision

Key specs1

Trimming System

Mounts directly in standard 7/8-14 threaded reloading presses to position 300 PRC cases for manual or power-assisted trimming.

Pros & cons32

Pros

• Holds 300 PRC cases firmly inside a standard press while trimming brass to exact length
• Threaded die body screws into standard reloading presses for quick setup
• Dedicated caliber-specific bore prevents case wobble during the trimming pass

Cons

• Requires a compatible Lee Quick Trim cutter assembly sold separately
• Trims to factory standard length without user-adjustable length micrometer

6

Ugly SRT Shoulder Referenced Brass Case Trimmer (SRT+NO.19 Collet(300 PRC))

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  9.7
• Brand
  Generic

Key specs2

Datum Indexing

Indexes directly from the 300 PRC case shoulder via the No. 19 collet to deliver uniform case mouth trimming across fired brass.

Included Collet

No. 19 Collet

Pros & cons32

Pros

• References the case shoulder to maintain consistent case trim lengths
• Includes dedicated No. 19 collet tailored for 300 PRC cartridge dimensions
• Indexing off the shoulder avoids length discrepancies caused by rim variations

Cons

• Relies on consistent shoulder datum bump from previous full-length sizing steps
• Generic manufacturing lacks the widespread brand support of legacy tooling makers

7

Lee 300 Winchester Magnum, 300 PRC Precision Micrometer Bullet Seating

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  7.6
• Brand
  Lee Precision

Key specs2

Seating Adjustment

Integrated micrometer thimble allows fine adjustments to cartridge overall length for tuning bullet jump.

Caliber Coverage

300 PRC and 300 Winchester Magnum

Pros & cons32

Pros

• Built-in micrometer top allows precise, repeatable seating depth adjustments
• Works across both 300 Winchester Magnum and 300 PRC cartridges
• Smooth internal sleeve aligns bullet straight into the case mouth

Cons

• Single die configuration provides no sizing capability
• Shared caliber design requires verifying seating stem contact against specific bullet ogives

8

Forster Products DIE Set 300 PRC Ultra™ Micrometer Seater &

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  9.2
• Brand
  Forster Products

Key specs2

Die Set Components

• Ultra micrometer bullet seating die
• Full-length sizing die with elevated expander

Seating Mechanism

Features an Ultra micrometer top and a sliding sleeve that supports both the cartridge case and projectile during seating.

Pros & cons42

Pros

• Ultra micrometer seater features high-precision hash marks for repeatable depth settings
• Full-length sizing die restores fired brass to exact chamber dimensions
• Sliding alignment sleeve holds bullet and case in concentric alignment before seating
• Raised expander ball in sizing die minimizes neck runout during the stroke

Cons

• Sizing die does not utilize modular neck bushings for custom tension tuning
• Precision tooling setup requires careful cleaning to prevent grit accumulation

9

Redding Reloading Master Hunter MH-C Deluxe Die Set 300 PRC

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  8.5
• Brand
  Redding

Key specs2

Expander Assembly

Equipped with a free-floating carbide expander button that glides through case necks to minimize neck stretch and runout.

Seating Adjustment

Uses a micrometer-adjustable seating head for fine adjustments when tuning cartridge overall length.

Pros & cons42

Pros

• Features a carbide expander button that reduces case neck friction and stretch
• Competition-grade micrometer seating die allows precision depth adjustments
• Full-length sizing die ensures smooth feeding in match rifle chambers
• Durable build ensures long-term precision for demanding long-range handloaders

Cons

• Carbide components and match-grade tolerances require careful handling to avoid chipping
• Non-bushing design fixes neck sizing dimensions without interchangeable bushing swaps

10

Hornady, Custom Grade New Dimension Full Length Sizer Die.300 PRC

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  7.2
• Brand
  Hornady

Key specs1

Sizer Engineering

Features an elliptical expander that enters and exits case necks smoothly to reduce neck stretching during resizing.

Pros & cons32

Pros

• Sizes case neck and body while bumping the shoulder back to factory specifications
• Elliptical expander ball provides smooth neck expansion with minimal friction
• Includes an integrated decapping spindle that secures pins reliably

Cons

• Sold as a sizer die only and does not include a bullet seating die
• Standard configuration lacks interchangeable neck bushings

11

Lee Precision 91621: Custom CLG 300 Prc

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  8.8
• Brand
  Lee Precision

Key specs2

Case Length Gauge Setup

Hardened steel stop pin indexes against the cartridge base to achieve uniform case trim lengths.

Included Hardware

Case length gauge and dedicated shellholder

Pros & cons32

Pros

• Caliber-specific case length gauge ensures exact 300 PRC trimming consistency
• Simple pin design stops the trimmer cutter at the exact maximum allowable case length
• Includes dedicated shell holder to secure the case head during trimming passes

Cons

• Fixed length dimension cannot be customized for non-standard chamber lengths
• Requires a Lee Cutter and Lock Stud assembly sold separately

12

Lee Precision 91139: Fl Size Die 300 Prc

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  7.2
• Brand
  Lee Precision

Key specs1

Sizing Operation

Full-length sizing restores expanded case shoulders and bodies to factory tolerances for chambering reliability.

Pros & cons32

Pros

• Full-length sizing die restores 300 PRC cases to chamber-ready dimensions
• Incorporates a decapping pin that pushes out spent primers during sizing
• Knurled steel ring enables quick finger adjustment in standard press threads

Cons

• Does not include a bullet seating die or powder funnel
• Fixed neck diameter cannot be altered without replacing the sizing die

13

MTM H50-XL Deluxe 50 Round Rifle Ammo Box 25 338

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  9.4
• Brand
  MTM

Key specs2

Box Capacity and Caliber Fit

Engineered with extra compartment depth to hold 50 magnum rounds including 300 PRC and 338 Lapua without damaging bullet tips.

Round Capacity

50 rounds

Pros & cons32

Pros

• Generous compartment height accommodates long 300 PRC cartridges loaded with high-BC bullets
• Holds up to 50 rounds in organized individual cells to prevent cartridge contact
• Durable polypropylene construction with snap-latch closure prevents accidental opening

Cons

• Extra vertical clearance causes standard-length cartridges to rattle if unpadded
• Rigid bulk design occupies noticeable room inside range bags

14

MTM H50-R-MAG Deluxe 50-Round Rifle Ammo Box 300 Win Mag

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  9.6
• Brand
  MTM

Key specs2

Box Capacity and Caliber Fit

Holds 50 belted or bottleneck magnum rounds, designed with standard magnum spacing for field transport.

Closure Mechanism

Snap-lock mechanical latch

Pros & cons32

Pros

• Holds 50 large-caliber magnum cartridges securely in a durable polymer case
• Textured surface improves grip when transporting ammunition in the field
• Snap-lock latch holds the lid closed during transit

Cons

• Standard magnum height may pinch extra-long 300 PRC rounds seated long for match chambers
• Does not include internal foam padding to cushion bullet tips during travel

15

MTM H50-R-MAG-10 Deluxe 50-Round Rifle Ammo Box, Fits 300 Win

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  7.3
• Brand
  MTM

Key specs2

Storage and Color Finish

Made in the USA in green polypropylene to house 50 magnum cases with internal cell isolation.

Manufacturing Origin

Made in USA

Pros & cons32

Pros

• Manufactured in the USA with sturdy, impact-resistant polypropylene
• High-visibility green finish allows quick identification in ammunition lockers
• Holds 50 rounds securely with individual dividers to prevent case neck dings

Cons

• Clearance is sized for standard magnums, so check bullet tip clearance on maximum COAL handloads
• Mechanical living hinge can stiffen in extreme sub-freezing hunting conditions

16

MTM H50-XL-10 H50-XL Deluxe 50 Round Rifle Ammo Box 270

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  9.3
• Brand
  MTM

Key specs2

Storage and Color Finish

Provides maximum vertical clearance in green polymer for 50 tall ultra-magnum and 300 PRC rounds.

Cell Depth Profile

Extra-large (XL) magnum clearance

Pros & cons32

Pros

• Deep XL internal cell profile protects extended bullet tips on heavy 300 PRC match loads
• Holds 50 rounds of magnum-class rifle ammunition in isolated compartments
• Tough American-made polymer construction with a distinct green finish

Cons

• Bulky outer shell footprint requires dedicated space in shooting packs
• Cartridges loaded to shorter overall lengths will exhibit vertical play unless buffered

Last update on 2026-09-18 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Which full-length sizing die guarantees smooth chambering in a 300 PRC rifle?

Full-length sizing dies that reset the entire bottleneck case body and shoulder prevent bolt drag and chamber binding in tight match chambers. The Hornady Custom Grade New Dimension full-length sizer die (046334) and the Redding full-length die set (80776) size steel-smooth bottleneck cases to factory specifications while including a bullet guide and proper seating plug. For advanced setups, the Redding Master Hunter MH-C Deluxe die set (29776) features carbide components, while the RCBS MatchMaster Duo die set (#28604) pairs a full-length sizing die with a micrometer seater without requiring separate neck bushings. Using a dedicated sizing tool like the Lee Precision 91139 full-length size die ensures fired cases chamber without resistance.

Will a micrometer seating die tighten long-range groups?

Yes, a micrometer seating die allows precise bullet seating depth adjustments that reduce jump variance and eliminate vertical stringing at distance. The Forster Products Ultra Micrometer Seater and full-length sizing die set aligns the bullet axis directly with the case neck to keep runout minimal. The RCBS MatchMaster Duo set (#28604) features a micrometer-adjustable seating mechanism that simplifies seating adjustments for high-BC match bullets. Shooters running Lee equipment can use the Lee Precision micrometer bullet seating die for 300 Winchester Magnum and 300 PRC to adjust bullet depth smoothly without resetting the main die lock ring.

How do you trim 300 PRC brass without changing shoulder dimensions?

Use a trimmer that references the case shoulder directly rather than measuring from the overall base. The Ugly SRT shoulder-referenced brass case trimmer paired with the number 19 collet for 300 PRC indexes off the datum line of the shoulder slope, which ensures consistent case lengths without altering headspace dimensions. If you prefer press-mounted case preparation, the Lee Precision 92033 300 PRC Quick Trim die holds cases in place inside a standard press to trim necks cleanly to specification.

Which ammo box protects tall 300 PRC cartridges without crushing bullet tips?

Extra-deep magnum boxes such as the MTM H50-XL or the green MTM H50-XL-10 provide the lid clearance required for long 300 PRC overall lengths. Standard magnum boxes like the MTM H50-R-MAG and H50-R-MAG-10 fit traditional calibers like 300 Winchester Magnum, 7mm Remington Magnum, and 375 H&H, but tall match-grade 300 PRC bullets can contact the top cover. Choosing cases sized for 338 Lapua Magnum and 300 or 338 Remington Ultra Magnum keeps heavy, streamlined bullet tips from bumping the plastic lid during field transit.

Can you load 300 PRC on a progressive press for higher shooting volume?

Yes, progressive presses handle 300 PRC cartridges when fitted with the correct caliber conversion hardware. The Dillon Precision rifle caliber conversion kit for the XL750 and XL650 sets up the shellplate and locator buttons specifically for the 300 PRC case rim. Shooters transitioning between big-bore cartridges or evaluating the best 6.8 Western rifles can maintain uniform loading rhythm on progressive machinery, though checking individual powder charges remains vital for consistent long-range muzzle velocities.

Is a factory crimp necessary when assembling 300 PRC ammunition?

It depends on your rifle's magazine setup and recoil characteristics. The Lee Precision 91494 Factory Crimp Die places a firm crimp around the case mouth to secure long projectiles against heavy recoil impulses inside internal box magazines. Much like securing hunting rounds for the best 270 Winchester rifles, applying a light crimp prevents bullet setback in the magazine, whereas single-feed target setups can rely purely on proper neck tension from a quality sizing die.