Description
RCBS Guide Bushing – 6.5 Caliber, Large Diameter
The RCBS Guide Bushing for 6.5mm calibers (Large Diameter) is a precision-machined steel insert designed to control neck tension during resizing. Used with RCBS MatchMaster and Gold Medal Bushing Dies, it allows reloaders to fine-tune bullet grip and reduce case neck work—resulting in improved accuracy and extended brass life.
Key Features:
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Caliber-Specific Fit: Designed for .264" bullets (6.5mm), including 6.5 Creedmoor, 6.5x55 Swede, and 6.5 PRC
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Large Diameter Option: Accommodates thicker neck walls or custom brass with minimal neck tension
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Self-Centering Design: Ensures concentric alignment with the case neck
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Hardened Steel Construction: Built for long-term precision and durability
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Interchangeable System: Works with RCBS MatchMaster and Gold Medal neck bushing dies
Specifications:
| Feature |
Details |
| Caliber |
6.5mm (.264") |
| Diameter Range |
Typically .286"–.295" (varies by brass) |
| Material |
Hardened steel |
| Compatibility |
RCBS MatchMaster & Gold Medal dies |
| Item Number |
Varies by bushing size |
Choosing the Right Size:
To determine the correct bushing diameter:
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Method 1: Measure the outside neck diameter of a loaded round and subtract .002"–.003"
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Method 2: Measure neck wall thickness × 2, add bullet diameter, then subtract .001"
RCBS recommends keeping one size above and below your target for tuning neck tension.
Performance and Application
This bushing is essential for precision reloaders who want to control neck tension and reduce brass fatigue. It’s especially effective for long-range and competition shooters using high-end brass with consistent neck thickness.
