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#1
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4.6x30 vs 5.7x28
just wondering if the 4.6 case is any stronger than the 5.7 case?
extractor groove seems to be smaller which could mean a stronger head. other than that i can't see any real difference for 2mm in case length. head size seems to be about the same though actual chamber drawings don't seem to exist on the net.
__________________
I post here because it keeps the riffraff away. 'Life's Journey is not to arrive at the grave safely in a well preserved body, but rather to skid in sideways, totally worn out, shouting, Holy sh!t... What a Ride! |
#2
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The 5.7 case looks a little bigger in diameter, but it might be because it's positioned slightly closer to the camera. I guess you would have to form both into a wildcat with the same shoulder location and angle, and then determine the case capacity.
Other unseen differences might exist such as ease of resizing. I recall you had some problems with the Velociraptor that required an insert for the primer hole in the shell holder. I have no idea about the strength of the case. |
#3
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The nice thing about the 4.6 brass that I have handled is they don't have the coating on then that the 5.7 cases have.
Drew |
#4
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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 Last edited by ab_bentley; 10-24-2010 at 09:02 PM. |
#5
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What's the case body dia???
Thanks,
__________________
George "Gun Control is NOT about guns, it's about CONTROL!!" |
#6
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__________________
“If the state converts a liberty into a privilege the citizen can engage in the right with impunity” - Shuttlesworth v Birmingham, U.S. Supreme Court,[394 U.S. 147 (1969).] Last edited by Vibe; 10-25-2010 at 02:26 PM. |
#7
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Quote:
Charlie Last edited by 22_boomer; 10-25-2010 at 09:40 AM. |
#8
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It probably will become more common, as I know it was picked up by a military organization last year. I won't get into who specifically that was, but I know 600 PDW's were purchased...
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MarinePMI ________________ We sleep peaceably in our beds at night only because rough men stand ready to do great violence on our behalf. -- George Orwell |
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