- New
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The Short Action Customs Modular Headspace Comparator Insert (7mm x 30°) is an ultra-precise, professional-tier reloading tool engineered to give handloaders absolute accuracy when measuring cartridge headspace consistency.
The Short Action Customs Modular Headspace Comparator Insert (7mm x 30°) is an ultra-precise, professional-tier reloading tool engineered to give handloaders absolute accuracy when measuring cartridge headspace consistency. Reimagined and heavily upgraded from the original 6061 aluminum designs, this next-generation insert is precision-machined from premium 17-4 stainless steel to eliminate structural wear and guarantee perfect flatness over a lifetime of use. Operating seamlessly in conjunction with the standalone Modular Headspace Comparator Body, this tool enables high-efficiency sorting and micro-precise control over shoulder bumping to maximize case life and long-range shot-to-shot velocity uniformity.
| Feature | Specification |
|---|---|
| Product Type | Modular Headspace Comparator Insert |
| Manufacturer Part Number | SAC-730HSC |
| Caliber Compatibility | 7mm (.284" Bullet Family) |
| Shoulder Profile Match | 30 Degrees |
| Material | 17-4 Premium Hardened Stainless Steel |
| Feature | Specification |
|---|---|
| Brand | Short Action Customs (SAC) |
| Required Components | Modular Headspace Comparator Body (Must be purchased separately) |
| Maximum Action Clearance | Rated for cartridges up to .338 Lapua Magnum |
| Measurement Method | Relative Headspace (For absolute reamer-print specs, SAC Datum Gauges are recommended) |
| Dimension Standards | Verifiable through official SAAMI Cartridge and Chamber Drawings |
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The Short Action Customs Modular Headspace Comparator Insert (7mm x 30°) is an ultra-precise, professional-tier reloading tool engineered to give handloaders absolute accuracy when measuring cartridge headspace consistency.
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