.
The 416 Ruger was limited to just 200
Cartridges. The cartridge was made by Bell
Brass for a very special (No.1) Ruger Single
Shot Rifle. The rifle was given to Bill Ruger
on his 75th. birthday in 1991. On the
headstamp:  the 16 is for 1916, Bill Ruger's  
birth year, the 97 is the year cases were
made , 1997, yes, 6 years after the rifle.
A bit odd, but that is what James Bell said.
The late Mr. William "Bill" Ruger
below:
`
Below: James Bell, owner of
Bell Brass and mother "Tootie"
Bell enjoying the 2006  "SLICS"
Saint Louis International Cartridge
Show sponsored by The International
Ammunition Association, Inc.
Very Limited!
One Per Customer
$49.75 per Cartridge
.
.
,
There are two different 416 Ruger cartridges!
(1.)
Just issued in January 2009 by Hornady, the 416 Ruger cartridge, which is
basically a 375 Ruger expanded to accept 416 projectiles.
(2.)  The first 416 Ruger was limited to 200 rounds, produced by Bell Brass  
Company and given to Bill Ruger in 1991 for his 75th birthday.
Ruger Company made a special Ruger "Number One Rifle" for
Bill Ruger's 75th birthday and Bell made the cartridges for the rifle.
The two cartridge are completely different.  The 1991 version is basically a
416 Rigby with a slightly different neck angle. The headstamp was
(Bell 16 97 416 RUGER)
As stated, the newer version by Hornady is a 375 Ruger cartridge which is
basically a 375 Ruger expanded to accept 416 projectiles.  The headstamp is
(HORNADY 416 RUGER)
Newer Hornady  416 Ruger  Version
Older Bell  416 Ruger  Version
.
1991
Bell
416
Ruger
2009
New
416
Ruger
375
Ruger
.
.
.
$5.95 per Cartridge
New in 2009
416 Ruger
by Hornady
400 Grain
normally with
DGS, Full Metal Jacket
Projectile
Bell
416
Ruger
Bell
416
Ruger
New
416
Ruger
375
Ruger
416
Rigby
416
Rem
Mag,
Sorry sold out,  most likely
will never have more, but
leaving this web-page up for
viewers interested in the item
New
416
Ruger
.
 (2009) version or (1991) version
416 Ruger
,