Receiver rail guide.

sheepherder · 02-27-2011, 09:15 AM

Just for giggles, I mic'ed my three grip frame 'abutment' widths, at the point of most wear...

S/42 = .255"
6782 = .250"
86434 = .253"

Interestingly, the 86434 shows no imprint of breech block or toggle 'lip' marks (it's a commercial 7.65 cal)...and the 9mm S/42 (pic somewhere above) with the sharpest breech block impression measures the greatest width...

I can't find a dimension on the blueprint, so I don't know if these are just tolerance variations or 'hammering' changes...

Norme · 02-27-2011, 09:34 AM

Hi Rich, I believe the axle pin jamming problem only became an issue post WW1, when hot 9mm ammo, intended for SMG's, was used in Lugers. This was corrected by extending the rear of the frame 1mm, on all Mauser and Krieghoff produced Lugers. I have no idea whether Simsons were also lengthened. What do you say, Ed? Regards, Norm.

02-27-2011, 09:15 AM	#1
sheepherder Lifer Lifetime Forum Patron Join Date: Feb 2009 Location: ...on the 'ol Erie Canal... Posts: 8,208 Thanks: 1,425 Thanked 4,474 Times in 2,343 Posts	Just for giggles, I mic'ed my three grip frame 'abutment' widths, at the point of most wear... S/42 = .255" 6782 = .250" 86434 = .253" Interestingly, the 86434 shows no imprint of breech block or toggle 'lip' marks (it's a commercial 7.65 cal)...and the 9mm S/42 (pic somewhere above) with the sharpest breech block impression measures the greatest width... I can't find a dimension on the blueprint, so I don't know if these are just tolerance variations or 'hammering' changes... __________________ I like my coffee the way I like my women... ...Cold and bitter...

02-27-2011, 09:34 AM	#2
Norme Always A Lifetime Forum Patron Join Date: Jul 2009 Location: Colorado Posts: 2,417 Thanks: 226 Thanked 2,607 Times in 933 Posts	Hi Rich, I believe the axle pin jamming problem only became an issue post WW1, when hot 9mm ammo, intended for SMG's, was used in Lugers. This was corrected by extending the rear of the frame 1mm, on all Mauser and Krieghoff produced Lugers. I have no idea whether Simsons were also lengthened. What do you say, Ed? Regards, Norm.