VOPO breech block

steelcase · 10-18-2012, 11:25 AM

Picked up a 1937 Luger the other day. It's a VOPO with mismatched parts. The breech block is mismatched to the gun. It is very tight. Ultrasonically cleaned and lubed very well so it's not crud. With just the breech block in the barrel extension it takes a hard press with my finger to close the breech. Should I lap with compound to free up tolerances?

Edward Tinker · 10-18-2012, 11:32 AM

I'd shoot it and see if it sticks first...

I just built up a parts shooter and the breechblock is very tight also....

10-18-2012, 11:25 AM	#1
steelcase User Join Date: Aug 2012 Posts: 14 Thanks: 4 Thanked 0 Times in 0 Posts	VOPO breech block Picked up a 1937 Luger the other day. It's a VOPO with mismatched parts. The breech block is mismatched to the gun. It is very tight. Ultrasonically cleaned and lubed very well so it's not crud. With just the breech block in the barrel extension it takes a hard press with my finger to close the breech. Should I lap with compound to free up tolerances?

10-18-2012, 11:32 AM	#2
Edward Tinker Super Moderator Eternal Lifer LugerForum Patron Join Date: Jun 2002 Location: North of Spokane, WA Posts: 15,966 Thanks: 2,066 Thanked 4,595 Times in 2,116 Posts	I'd shoot it and see if it sticks first... I just built up a parts shooter and the breechblock is very tight also.... __________________ Edward Tinker ************ Co-Author of Police Lugers - Co-Author of Simson Lugers Author of Veteran Bring Backs Vol I, Vol II, Vol III and Vol IV