W e l c o m e ,    d e m o
Inactivity  time-out:  1 hour 

A case diagram for
every round.
CURRENTLY LOGGED IN   black=free member   red=paid subscriber    (What's the difference?)
wildhawk, agshooter, commodore, dale and 16 demo visitors
A 15 year labor of love, now enjoyed by thousands - AmmoGuide Interactive.
--- UNSOLICITED, UNEMBELLISHED COMMENT ---
  "...You know, the key thing is intelligent presentation. You can find cartridge dimensions everywhere. You can find ballistic calculators everywhere. You can even find load data everywhere. AG separates itself from the crowd by its presentation..."
 
  -- J.B., Castro Valley, CA, 8/23/2011  
 

There are no loads available yet for the
.50 McMillan Bros. (Fat Mac)

  Print Friendly Similar diameter rounds Add Load
What does this round convert to? Compare Add Round to Your Favorites List
Display:
Case Diagram/Image
History/Description
Available Loads

About AmmoGuide Case Diagrams
NOTE: The below shoulder angle is an estimate based on the provided shoulder geometry.
Standard American S.A.E. (in.)
Metric Metric (mm.)


SPECIFICATIONS
Bullet Diameter:
.511 in.
Max Overall Length:
4.185 in.
Case Capacity (est):
406.9 gr. water
Primer Size:
.315 in.
 
NOMINAL PERFORMANCE
Bullet Weight:
750 gr
Muzzle Velocity:
3,400 fps
Muzzle Energy:
19,261 ft-lbs
.50 McMillan Bros. (Fat Mac) at AmmoGuide.com 
.50 McMillan Bros. (Fat Mac) at AmmoGuide.com
"Easy Link" to this cartridge (copy and paste into emails, forums, etc.):
.50 McMillan Bros. (Fat Mac) - http://ammoguide.com/?catid=445

Also called the 12.7x67mm, this cartridge is based on the 20mm artilley/cannon round. Developed by the late Gale McMillan and his son Rock, the round was introduced by McMillan Bros in 1996.
http://www.mcbrosrifles.com/

The "Fat Mac" was targeted for long-range Fifty Caliber Shooters' Ass'n. (FCSA) competitions.
http://fcsa.org/

A special primer insert is required to adapt .50 BMG primers to the 20mm case.

To compare .50 Fat Mac ballistics with the .50 BMG and .510 DTC EUROP:
http://ammoguide.com/cgi-bin/bcompar...445%7c

AmmoGuide: The Premier Reloading Manual of the Web
 
Choose another cartridge:
 

NEW MEMBERS:  Today:  Previous 7 days:  29 Previous 30 days:  93
LOGINS:  Today:  246  Previous 7 days:  3591 Previous 30 days:  15375
MISC:  Loads:  29842 Cartridges:  1008 Newest Member:  hydraz
You are logged into AmmoGuide.com using the DEMO account.
To login to your personal account (or to create one FREE), CLICK HERE
-- JAVA is a registered trademark of Oracle and/or its affiliates --



Hide Right Sidebar
NRA Business Alliance: The Business of Freedom
Enjoy all the features of AmmoGuide for one low annual fee!
If you are a reloader and NOT taking full advantage of AmmoGuide Interactive for just $21.95/year, WE'D LIKE TO KNOW WHY. Please tell us


 
INDUSTRY LINKS
4D Products
ADI
Aguila
Accurate Powders
Accurate Molds
AGI
Alliant
AmmoEasy.com
Ammunition Depot
Ammunition Pages
Armalite
ATF
B & M Rifles & Ctgs
Barrett
Black Hills
Bart's Bullets
Barnes
Bellm
Berger
Browning
Buffalo Arms
Bushnell
Calhoon
CCI
CH-4D
Chuck Hawks
Clymer
Colorado Cust. Ctg. Co.
Colt
Conjay
Cooper
CorBon
Cutting Edge Bullets
Dardas Cast Bullets
Defender Ammunition
Dillon
DPMS
E. Arthur Brown
Eagle View
EDM Arms
eguns.com
Elite Reloading
E.R. Shaw Rifles
Federal
Fiocchi USA
FirearmsTraining4U.com
Forster
Freedom Arms
Glock Talk Forums
Graf & Sons
GS Custom Bullets
Handloaders Bench
Hawk Bullets
Heckler & Koch
Hoch
Hodgdon
HomeGunSmith.com
Hornady
IMR
Kimber
Kynoch
Lapua
L.E. Wilson
Lee
Long Island Firearms
Long Range Hunting
Long Range Innovations
LuckyGunner.com
Lyman
Manson Reamers
Marlin
McMillan Firearms
Midsouth
Midway USA
Montana Gold Bullets
Nobel/Vectan
Norma
Northfork
North Wood Sh. Sports
Nosler
NSSF
Oehler
Peterson Cartridge
PMC
PTG
Rainier
Ramshot
RCBS
Redding
Reload Your Gear
Reloader's Auction
Remington
Ruger
RWS
S&W
SAAMI
Sako
Savage
Sellier & Bellot
Shiloh
Shooters Forum
Sierra
SIG
SNS Casting
Speer
SSK Industries
StarLine
Steve's Pages
Swift
Taurus
Tanfoglio
Thompson/Center
Thunderbird (TCCI)
Ventura Munitions
Vihtavuori
Weatherby
Wideners
Winchester
Women's Holsters
Woodleigh
Wolf
Z-Hat Custom