.475 A&M Magnum

Infobox Firearm Cartridge
name= .475 A&M Magnum


caption=
origin= United States
type= Rifle
service=
used_by=
wars=
designer=
design_date=1958-9
manufacturer=
production_date=
number=
variants=
is_SI_specs=
parent=.378 Weatherby
case type=belted bottleneck
bullet=.475
neck=.502
shoulder=.560
base=.584
rim_dia=.533
rim_thick=
case_length=2.90
length=3.75
rifling= 1:14
primer= Boxer large rifle
is_SI_ballistics=
bw1=400
btype1=
vel1=3227
en1=9034
bw2=500
btype=
vel2=2980
en2=9900
bw3=600
btype3=
vel3=2500
en3=8040
bw4=
btype4=
vel4=
en4=
bw5=
btype5=
vel5=
en5=
test_barrel_length=
balsrc=Barnes & Amber

The .475 A&M Magnum is a American rifle cartridge.

Designed by the Atkinson & Marquart Rifle Co. in Prescott, Arizona, this wildcat round was derived from the .378 Weatherby. It was never available commercially, and Fred N. Barnes was the only maker of bullets for it. [Barnes, Frank C., ed. by John T. Amber. "Cartridges of the World" (Northfield, IL: DBI Books, 1972), p.142.] At one time, it was the most powerful sporting cartridge ever developed. [Barnes, and Amber, p.142.]

Only a small number of custom-built rifles were produced in this caliber. [Barnes, and Amber, p.142.]

ee also

*List of cartridges by caliber
*List of rifle cartridges
*12 mm caliber

References

ources

*Barnes, Frank C., ed. by John T. Amber. ".475 A&M Magnum", in "Cartridges of the World", pp.142-3. Northfield, IL: DBI Books, 1972. ISBN 0-695-80326-3.