I'll try, the ones in red were not published. A little mix of others as well. The one in Green is my favorit ;-).
June-87 American Single Shot Rifle News Identifying That Niedner Rifle
April-89 American Single Shot Rifle News The Leopold-Mann-Niedner Maynard
August-90 Rifle Niedner Rimless Magnum Rifle
December-93 American Single Shot Rifle News Niedner Varmint Rifle 1911
October-94 Rifle The Mann-Niedner Base-Band Bullet
February-96 American Single Shot Rifle News Niedner False-Barrel Rifle
June-96 Precision Shooting An Introduction
November-96 Precision Shooting Ludwig Wundhammer
January-97 Gun Digest A Maynard Talks
April-97 Precision Shooting A.O. Niedner Malden
November-97 Precision Shooting Griffin & Howe
February-98 Precision Shooting Hoffman Arms Company
March-98 Precision Shooting Niedner Rifle Corporation
June-98 Precision Shooting Not Well Known
January-99 Precision Shooting Alvin Linden
March-99 Precision Shooting R.G. Owen
June-99 Precision Shooting R.F. Sedgley
October-99 Precision Shooting Adolph Minar
June-00 Single Shot Rifle Journal Dear Robert (H.M. Pope Rifle)
August-00 Precision Shooting More Unknown
November-00 Precision Shooting 400 Niedner
January-01 Precision Shooting New Information and Corrections (a)
February-01 Precision Shooting 400 Whelen
June-01 Precision Shooting New Information and Corrections (b)
November-01 The Accurate Rifle Understanding the Paper-Patched Bullet
September-02 Precision Shooting Fred Adolph
November-02 Precision Shooting The Niedner-Springfield .22LR
June-03 Precision Shooting More Not Well Known & Unknown
August-03 Precision Shooting Owen-Sheldon Remington 12-C
December-03 Precision Shooting .400 Whelen Part 2
February-04 Precision Shooting George Gibbs
March-04 Precision Shooting Harvey W. Rodgers
August-04 Precision Shooting German Connection (a)
December-04 Precision Shooting German Connection (b)
March-05 Precision Shooting F. Surkamer & E. Johnson
April-05 Precision Shooting Shooting Mr. Niedner's Schuetzen rifle
August-05 Precision Shooting Niedner's False-Barrel Rifle
February-06 Precision Shooting Owen & Worthen Revisited
July, 06 Precision Shooting Whelen's Wundhammer
Feb, 2007 Precision Shooting Niedner's Underhammer
March, 2007 Precision Shooting Depression Era Sporters
January, 2008 Precision Shooting Stewart Edward White's Wundhammer
June, 2008 Precision Shooting Niedner's 1924 Rifle
December, 2008 Precision Shooting Fred Adolph Revisited
February, 2009 Precision Shooting When Was It Made
March, 2009 Precision Shooting Wundhammer & King
December, 2009 Precision Shooting S.R. Griffin
July, 2010 Precision Shooting John Dubiel
March, 2011 Precision Shooting Hoffman Falling Block
August, 2011 Precision Shooting Paul Jaeger Sent 5/21/11
January, 2012 Precision Shooting A Collection of Sporters (a) Sent 9/10/11
March, 2012 Precision Shooting A Collection of Sporters (b) Sent 9/10/11
Precision Shooting James V. Howe Sent 8/31/11
August, 2012 Precision Shooting Pachmayr Sent 4/10/12
Precision Shooting John Hutton Sent 10/26/12
Articles in varying amount of completion (in the works).
The Men from Hoffmans
Bob Owen by the Numbers
Ned Moran
John Oberlies
Jules La Bantchni
"S" Man
The 25-HP The story of Mann & Niedner (three-part)
Tobias
