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Old 10-25-2010, 09:33 AM
22_boomer 22_boomer is offline
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Join Date: Oct 2007
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Quote:
Originally Posted by ab_bentley View Post
4.6x30:
Bullet diameter4.65 mm (0.183 in)
Neck diameter5.31 mm (0.209 in)
Shoulder diameter7.75 mm (0.305 in)
Base diameter8.02 mm (0.316 in)
Rim diameter8.00 mm (0.315 in)
Rim thickness1.10 mm (0.043 in)
Case length30.50 mm (1.201 in)
Overall length38.50 mm (1.516 in)
Rifling twist160 mm (1 in 6.3 in)
Primer typeBoxer Small Pistol
Maximum pressure400.00 MPa (58,015 psi)

5.7x28:
Neck diameter6.35 mm (0.25 in)
Shoulder diameter7.9 mm (0.311 in)
Base diameter7.9 mm (0.311 in)
Rim diameter7.80 mm (0.307 in)
Rim thickness1.14 mm (0.045 in)
Case length28.83 mm (1.135 in)
Overall length40.50 mm (1.594 in)
Case capacity0.90 cm³ (14 gr H2O)
Rifling twist228.6 mm (1:9 in)
Primer typeBoxer Small Rifle
Maximum pressure345.0 MPa (50,040 psi) [7
There must be a bit more meat in the 4.6x30 since the max pressure is at a nice level @ 58,015. I was just wondering how available the 4.6x30 brass was. Once fired 5.7x28 brass is easy to get.

Charlie

Last edited by 22_boomer; 10-25-2010 at 09:40 AM.
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