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5 mm/35 SMc
5 mm/35 SMc cartridges
5 mm/35 SMc cartridges
Type Rifle
Place of origin USA
Production history
Designer Michael "Mic" McPherson and Byrom Smalley
Designed 2004
Specifications
Parent case 6 mm BR
Bullet diameter .204 in (Bad rounding hereScript error mm)
Shoulder diameter .4598 in (Bad rounding hereScript error mm)
Base diameter .4709 in (Bad rounding hereScript error mm)
Rim diameter .4728 in (Bad rounding hereScript error mm)
Rim thickness .0157 in (Bad rounding hereScript error mm)
Case length 1.556 in (Bad rounding hereScript error mm)
Overall length 2.03 in (Bad rounding hereScript error mm)
Rifling twist 1-12
Primer type small rifle
Ballistic performance
Bullet weight/type Velocity Energy
32 gr (Bad rounding hereScript error g) BT4,650 ft/s (Bad rounding hereScript error m/s)1,535 ft·lbf (Bad rounding hereScript error J)
39 gr (Bad rounding hereScript error g) BT4,250 ft/s (Bad rounding hereScript error m/s)1,564 ft·lbf (Bad rounding hereScript error J)
Source(s): Superior Ballistics

5 mm/35 SMc is a high performance 5 mm (.20 caliber) cartridge. Designed by Michael "Mic" McPherson and Byrom Smalley[1] and like all of their other designs carries the "SMc" moniker as well as being patented and having a copyright.[2]

DescriptionEdit

SMc cartridges were developed in an attempt to produce an efficient cartridge combining low recoil, low heat, and high velocity.[3] The 5 mm/35 SMc has produced velocities in excess of 4,800 ft/s (Bad rounding hereScript error m/s) shooting a 30-grain (Bad rounding hereScript error g) molybdenum disulfide-coated Berger bullet from a 28 inches (Bad rounding hereScript error cm) Pac-Nor barrel, far higher than its commercial counterpart the .204 Ruger.

Although it is a wildcat, rifles chambered for 5mm/35 are available from the custom shop at Savage Arms.[4]

The patents for the cartridge are US 7210260</span> , US 7086336</span>  and US 2003079639</span> .

See alsoEdit

ReferencesEdit

  1. Biographies. SBI. URL accessed March 3, 2007.
  2. Script error
  3. Mission Statement at Superior Ballistics Inc.
  4. Script error
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