5 mm/35 SMc
5 mm/35 SMc (5mm-35) / 5×39mm SMc is a high performance 5 mm (.20 inch) intermediate cartridge. Designed by Michael McPherson and Byrom Smalley and like all of their other designs carries the "SMc" designation as well as being patented.
5 mm/35 SMc
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- Name
- 5 mm/35 SMc
- Field
- wildcat cartridge · rifle cartridge
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5 mm/35 SMc (5mm-35) / 5×39mm SMc is a high performance 5 mm (.20 inch) intermediate cartridge. Designed by Michael McPherson and Byrom Smalley and like all of their other designs carries the "SMc" designation as well as being patented.
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wikidata · Q4641193 · wikipedia · 5 mm/35 SMc
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Key facts
• Name — 5 mm/35 SMc • Origin — USA • Type — Rifle • Designer — Michael McPherson and Byrom Smalley • Design Date — 2004 • Parent — 6mm BR • Case Type — Rimless, bottleneck • Bullet —.2039 in • Land —.1988 in • Neck —.2343 in • Shoulder —.4598 • Base —.4709 • Rim Dia —.4728 • Rim Thick —.0157 • Case Length — 1.556 • Length — 2.03 • Rifling — 1-12 • Primer — small rifle • Bw1 — 32 • Btype1 — BT • Vel1 — 4650 • En1 — 1535 • Bw2 — 39 • Btype2 — BT • Vel2 — 4250 • En2 — 1564 • Balsrc — Superior Ballistics
Description
SMc cartridges were developed in an attempt to produce an efficient cartridge combining low recoil, low heat, and high velocity. The 5 mm/35 SMc has produced velocities in excess of 4800 ft/s shooting a 30 gr molybdenum disulfide-coated Berger bullet from a 28 in Pac-Nor barrel, far higher than its commercial counterpart the.204 Ruger. Although it is a wildcat cartridge, rifles chambered for 5mm/35 are available from the custom shop at Savage Arms. The patents for the cartridge are, and.
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2- rifle cartridgeTerminology
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- wildcat cartridgeTerminology
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
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