- New
Reference: Iosso-Paste 10215
Brand: Iosso Products
Reference: 073000020 19010
Brand: Iosso Products
Reference: NTG100H
Brand: Teslong
Reference: NTG 5 mirror Mirror set
Brand: Teslong
Reference: NTG150W
Brand: Teslong
Reference: 749011715
Brand: Sinclair International
Reference: B30
Brand: Dewey Manufacturing
Reference: SEB-SRB-G2
Brand: SEB Rests
The Short Action Customs Modular Headspace Comparator Insert (6mm / 30°) is a precision-engineered reloading tool designed to deliver unmatched accuracy for cartridge headspace and case sizing measurements
The Short Action Customs Modular Headspace Comparator Insert (6mm / 30°) is a precision-engineered reloading tool designed to deliver unmatched accuracy for cartridge headspace and case sizing measurements. Machined from ultra-durable 17-4 stainless steel, this insert integrates seamlessly with the Modular Headspace Comparator Body to ensure repeatable, benchrest-grade consistency. Specifically profiled for .243 Winchester and compatible wildcat cartridges sharing a 30-degree shoulder angle, the Short Action Customs Modular Headspace Comparator Insert (6mm / 30°) is an essential upgrade for precision handloaders.
| Specification | Details |
|---|---|
| Material | 17-4 Stainless Steel |
| Finish | Precision Machined Raw Stainless |
| Caliber Classification | 6 mm (.243 Caliber) |
| Shoulder Angle | 30° |
| Parameter | Specification |
|---|---|
| Manufacturer | Short Action Customs (SAC) |
| Product Type | Modular Headspace Comparator Insert |
| Measurement Type | Relative Case Headspace / Shoulder Datum |
| Required Accessory | Modular Headspace Comparator Body (sold separately) |
| Cartridge Compatibility | .243 Winchester, .243-based wildcats (30° shoulder) |
Reference: 10166312
Reference: 87936
Brand: Redding Reloading
Reference: 1270117
Reference: 749014467
Brand: Sinclair International
Reference: 749014502 SIN-6BR
Brand: Sinclair International
Reference: 749002640 69100
Brand: Sinclair International
Reference: 594288
Brand: Hornady
Reference: 749014472
Brand: Sinclair International
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The Short Action Customs Modular Headspace Comparator Insert (6mm / 30°) is a precision-engineered reloading tool designed to deliver unmatched accuracy for cartridge headspace and case sizing measurements
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