Malfunction loading 7.65 Para

mrerick · 04-10-2012, 07:50 PM

Bob,

Count the number of turns in the pistol's recoil spring (within the frame). A recoil spring for a 9mm Mauser has 21 turns. Your receiver is from a 9mm Mauser. If it's serial (on the left) matches the frame's serial number digits (above the trigger guard) you may still have the 9mm Mauser recoil spring in the frame. (Just realized I am echoing Doug's comments above...)

Try a spring with 18 or 19 turns. If this doesn't work, it's possible to try nipping off coils one at a time to see if things improve. Use good hard tools and safety glasses!

How strong is your magazine follower spring? Is it very easy, or difficult to load cartridges? Which magazine do you have? (please show a photo).

The timing is a balance based upon the recoil spring's strength (which I believe should be less for a .30 Luger), the magazine spring's strength and the firmness of your hold on the pistol. A firm consistent hold should allow the pistol to cycle consistently.

Are you reloading your own .30 Luger cartridges, or using commercial ammunition (and if so, which one)?

Marc

04-10-2012, 07:50 PM	#8
mrerick Super Moderator - Patron LugerForum Life Patron Join Date: Dec 2009 Location: Eastern North Carolina, USA Posts: 3,925 Thanks: 1,377 Thanked 3,140 Times in 1,520 Posts	Bob, Count the number of turns in the pistol's recoil spring (within the frame). A recoil spring for a 9mm Mauser has 21 turns. Your receiver is from a 9mm Mauser. If it's serial (on the left) matches the frame's serial number digits (above the trigger guard) you may still have the 9mm Mauser recoil spring in the frame. (Just realized I am echoing Doug's comments above...) Try a spring with 18 or 19 turns. If this doesn't work, it's possible to try nipping off coils one at a time to see if things improve. Use good hard tools and safety glasses! How strong is your magazine follower spring? Is it very easy, or difficult to load cartridges? Which magazine do you have? (please show a photo). The timing is a balance based upon the recoil spring's strength (which I believe should be less for a .30 Luger), the magazine spring's strength and the firmness of your hold on the pistol. A firm consistent hold should allow the pistol to cycle consistently. Are you reloading your own .30 Luger cartridges, or using commercial ammunition (and if so, which one)? Marc __________________ Igitur si vis pacem, para bellum - - Therefore if you want peace, prepare for war.