Anyone Having 4th Round Jams with their Pardini SP New?

by gwhite 12/26/2020, 2:44 pm

First topic message reminder :

I help coach a college team, and they have 5 Pardini SP New's. I've been working with Pardini USA to fix problems we've been having with 4th round jams. I have improved things by carefully fitting new extractors, but the problems have persisted despite replacing magazines, recoil springs, and buffers. I was going to send a couple down to Pardini to look at after the Collegiate National Championships last March. Well, COVID hit, they canned the Nationals, and we've been locked out of the range ever since. It's quite likely we will not have access to the range (or the pistols) for many more months.

I have some ideas about what is going on & how to fix it, but I can't do any test firing. I'm looking for a few "beta testers" to work with.

If you have a Pardini SP New (with the O-ring buffer in the bolt), and have had persistent 4th round jam issues, I would be delighted to work with you to try to fix the problem. Before we get serious, there are a number of things you can try that can often help. I've posted some info on the TargetTalk Olympic Pistol forum on things to try first:

http://www.targettalk.org/viewtopic.php?f=4&t=27446&p=292149p292149

Based on the bullseye league I shoot in, there are likely to be a lot more Pardini owners on this forum than on TargetTalk. If you've tried all the usual fixes and are still having problems, PM me and I'll do what I can to help. In return, all I ask is that you do some test firing and take notes to help with my research.

Thanks!

by Allgoodhits 5/11/2022, 8:01 pm

I have an SP New that has the green buffer in the rear of the frame. I had a problem with my Pardini, where it was the 3 or 4th round pretty repeatedly. Never the 1st and never the last rd. All magazines. The condition that experienced was theta spent case rim would get caught behind the recoil guide rod, while the next round was partially chambered.

I carefully checked all (6 mags) for cleanliness and consistent angle of the ejector. All seem to be on par with other mags I could compare them too. I also tried a bunch of different ammo. Replaced buffer and recoil spring. Finally, I shipped it to Pardini USA After a couple months, it was sent back to me and noted as being fixed.

Upon return, it did the same thing it did before. Subsequent to its return, I purchased a new firing pin, FP spring, extractor, extractor spring and another new buffer. Installed all myself. It has been flawless ever since with CCI SV, Norma TAC, SK, CMP bulk Ely and Bullseye Ely.

My observation was after changing out the parts the ejection was slightly forward and very positive. Before, it was positive, but almost directly to the side. I have no idea why PardiniUSA did not replace these small parts when they had it. I spent several hundred dollars with no success, then the $100+/- worth of DIY parts cured the condition. Since I replaced all of the parts together, I do not know exactly which one or combo was the cure. My best guess was it was the extractor or extractor spring that was the culprit, and I think the extractor spring more than anything. IMO, the ejector can't do what it is supposed to do, unless the extractor can hold onto the brass long enough to get it there.

I hope this aids in your quest. It was extremely frustrating to me during this ordeal.

by hakan.basaran@gmail.com 4/22/2023, 2:53 pm

Hi have an issue very similiar and could not find any solution yet Sad

. Did you find a successful solution to this issue?

Anyone Having 4th Round Jams with their Pardini SP New? - Page 2 20230411

Anyone Having 4th Round Jams with their Pardini SP New? - Page 2 20230410

by Allgoodhits 4/27/2023, 1:59 pm

hakan.basaran@gmail.com wrote:Hi have an issue very similiar and could not find any solution yet . Did you find a successful solution to this issue?

That is exactly what mine was doing. For me it was new firing pin, spring, extractor and spring. Since I replaced all, I am not sure which solved the problem. My best guess was it was the extractor and/or extractor spring. Ever since I did that it has been 100% now for several thousand rounds.

by hakan.basaran@gmail.com 4/27/2023, 2:21 pm

Allgoodhits wrote:
hakan.basaran@gmail.com wrote:Hi have an issue very similiar and could not find any solution yet . Did you find a successful solution to this issue?

That is exactly what mine was doing. For me it was new firing pin, spring, extractor and spring. Since I replaced all, I am not sure which solved the problem. My best guess was it was the extractor and/or extractor spring. Ever since I did that it has been 100% now for several thousand rounds.

Thanks, i will try it as well.

by sklarcpa 4/27/2023, 7:55 pm

Had this same issue 2 years ago. For mine it was the extractor spring which was the fix.

by BruceV 4/27/2023, 11:17 pm

I had the same issue 4th round didn't eject and 5th round didn't chamber, but only one of my magazines.

Because it was only one magazine I was pretty sure it was not the extractor or extractor spring, recoil spring, o-rings or firing pin and spring. But because I had a pretty good round count on the gun I replaced all of those parts.

Still that one magazine kept on failing. I looked at that magazine compared to all the others and what I noticed was at the very front of the ejector, the tip was getting mushroomed and causing a little lip on the front inside of the ejector.

Also the slot in the magazine that the button pin that holds the follower/elevator in place at the very top where the pin stops, the slot was every so slightly indented. I could feel the pin hang up a little bit.

Now beats me if any of that would cause the problem, but I sanded the inside of the ejector smooth and the top area of the slot smooth.

Ever since then the magazine has worked perfectly.

I can't say that was the problem but it works now.

The first 3 pics show what it looked liked, the last pic after I sanded the areas.

Anyone Having 4th Round Jams with their Pardini SP New? - Page 2 20230412

Anyone Having 4th Round Jams with their Pardini SP New? - Page 2 20230413

by hakan.basaran@gmail.com 4/27/2023, 11:44 pm

Very interesting about the mag. I will check it and se if I have something smiliar issue.

by Gamma9 5/3/2023, 8:26 pm

I have a brand new SP with 400 rounds thru it. Mine is doing the same thing depicted in the photo's. Would not think it could be a fireing pin or extractor or springs. As stated! This is a brand new gun. I have only used one of my three new magazines. I'm going to use a new magazine this weekend and see what happens. This using CCI-SV. I would switch to eley target or club. But I have 4 cases of CCI. Hope it isn't the CCI causing this issue. Will report back next week if the other magazines do the same thing.

by hakan.basaran@gmail.com 5/3/2023, 11:39 pm

Gamma9 wrote:I have a brand new SP with 400 rounds thru it. Mine is doing the same thing depicted in the photo's. Would not think it could be a fireing pin or extractor or springs. As stated! This is a brand new gun. I have only used one of my three new magazines. I'm going to use a new magazine this weekend and see what happens. This using CCI-SV. I would switch to eley target or club. But I have 4 cases of CCI. Hope it isn't the CCI causing this issue. Will report back next week if the other magazines do the same thing.

Thanks, I hope you can find a solution that holds.

by Dusko 12/1/2024, 7:11 pm

gwhite wrote:I help coach a college team, and they have 5 Pardini SP New's. I've been working with Pardini USA to fix problems we've been having with 4th round jams. I have improved things by carefully fitting new extractors, but the problems have persisted despite replacing magazines, recoil springs, and buffers. I was going to send a couple down to Pardini to look at after the Collegiate National Championships last March. Well, COVID hit, they canned the Nationals, and we've been locked out of the range ever since. It's quite likely we will not have access to the range (or the pistols) for many more months.

I have some ideas about what is going on & how to fix it, but I can't do any test firing. I'm looking for a few "beta testers" to work with.

If you have a Pardini SP New (with the O-ring buffer in the bolt), and have had persistent 4th round jam issues, I would be delighted to work with you to try to fix the problem. Before we get serious, there are a number of things you can try that can often help. I've posted some info on the TargetTalk Olympic Pistol forum on things to try first:

http://www.targettalk.org/viewtopic.php?f=4&t=27446&p=292149p292149

Based on the bullseye league I shoot in, there are likely to be a lot more Pardini owners on this forum than on TargetTalk. If you've tried all the usual fixes and are still having problems, PM me and I'll do what I can to help. In return, all I ask is that you do some test firing and take notes to help with my research.

Thanks!

Have you ever figured it out. I am having the same issue. Thank you

by Gamma9 12/1/2024, 7:33 pm

As stated a few months ago. My brand new out of the box SP Bullseye unit did the same thing. This was with CCI paper box and 100round plastic container. This problem was present in all four of my magazines. My answer to the problem was switching to SK pistol match. Not pistol match special. It seems that Pardini’s do not like CCI. Some on here have concluded, that the CCI case is too long and not clearing the ejection port before the next round moves up. Why on the fourth round? Mine always was on the fourth round. All I can say is the SK solved the problem. It would seem that case length and recoil pulse are a factor. I have since switched to a Vudoo dedicated lower and a Nelson conversion. Hope this helps.

by gwhite 12/1/2024, 8:25 pm

The problem is the 5th round bullet can rise up enough high enough to hit the 4th round case as it's coming back out of the chamber. Depending on how hard the fired case gets hit, and how good a grip the extractor has on it, it can get knocked loose in the action and cause a jam.

Anyone Having 4th Round Jams with their Pardini SP New? - Page 2 Pardin10

One thing that will affect that is bullet shape, and the recoil may also influence how high the 5th round comes up. I don't have a picture including SK bullets, but CCI has a shoulder that might be causing part of the problem. The picture above was taken with a Federal dummy round, but I think the bullet shape isn't that different from CCI. Here's a picture of the bullets for several flavors of ammo:

Anyone Having 4th Round Jams with their Pardini SP New? - Page 2 Ammo_b11

RWS has a much less pronounced shoulder than either CCI or Aguila. That seems to help it feed better in some pistols, and it might not whack the 4th round case as hard.

by Dusko 12/1/2024, 8:30 pm

I think the problem is within the frame. I have hp conversion kit and it does the same thing. Have you ever thinker with rear buffer . I replaced buffer o rings but nothing changed

by gwhite 12/1/2024, 8:45 pm

That's weird. I would have suspected the bolt, but the SP & HP use different bolts.

The pistols I had the most trouble with use the O-ring buffers, and changing them made no difference. I have seen pistols with the rear buffer where functioning was improved dramatically with a new buffer, but it's been so long ago that I don't recall the exact symptoms. I think what happens if the buffer isn't working well is the jolt from the bolt stopping at the back of its travel from earlier rounds moves the 5th round forward in the magazine, and that aggravates the problem.

by Dusko 12/1/2024, 8:51 pm

Anyone Having 4th Round Jams with their Pardini SP New? - Page 2 Img_5410

gwhite wrote:That's weird. I would have suspected the bolt, but the SP & HP use different bolts.

The pistols I had the most trouble with use the O-ring buffers, and changing them made no difference. I have seen pistols with the rear buffer where functioning was improved dramatically with a new buffer, but it's been so long ago that I don't recall the exact symptoms. I think what happens if the buffer isn't working well is the jolt from the bolt stopping at the back of its travel from earlier rounds moves the 5th round forward in the magazine, and that aggravates the problem.

by Dusko 12/1/2024, 8:52 pm

This is the back of my frame. I can’t find a picture of the original part but mine looks damaged. I thought SP NEW uses only o rings as a buffer but according to diagram that’s not the case.

by gwhite 12/1/2024, 9:09 pm

I don't see a buffer at all. If you don't have the O-rings, you definitely need one of the green buffers. Also, there isn't room in the .32 bolt for the O-ring buffer, and you HAVE to use the frame buffer. They changed from the frame mounted green buffer to the O-rings in the .22 bolt sometime around 2010 or so. I have an SP from ~ 2008 that uses the frame buffer, and by 2015 they had switched to the O-rings.

Here's a link to my notes on installing the frame buffer, which includes a modification if you have a .32 setup, and need it to work with a .22 bolt that has the O-ring buffer.

Pardini SP Frame Buffer Installation

by Dusko 12/1/2024, 9:16 pm

My pardini is 2017. In both.22 and .32 I have 13 o rings in each bolt.
Diagram I posted, I am not sure which model year is it for but it clearly shows both( o rings and back buffer). I can see at the back of my frame I have something but you are right, it doesn’t look like a green buffer that older models have. If that black buffer isn’t the solution to my problem I don’t know what else I can do

by RoyDean 12/2/2024, 12:22 am

I was told by Vlad/Alex that the more recent SP22's do not have or need the (black or sometimes green) buffer " plug" in the back of the frame.

I never found CCI to be a good choice. My go to practice ammo was Aguila SE SV, never a problem till a bad batch last year. Match ammo always Eley BPX, never a problem till earlier this year year when a new old stock batch had many "over length" and was hopeless, dumped that and no problem since with current stock.

by Dusko 12/2/2024, 12:27 am

I am having the same fte in both calibers that leads me to believe the problem is within the frame( I have SP with HP conversion kit) pistol uses the same frame for both . It has to be something internally

by hakan.basaran@gmail.com 12/2/2024, 1:55 am

Hi all, it was a time ago but I have had this issue and it was really annoying. I did all, I mean everything that you can do as your own, channged to different ammunition, tried different magazines including brand new ones, changed every singe part in the bold including the o-rings, firing pin, ejector, and all springs that can be changed. Nothing helped, it was allways the same jam.

Fortunetly the distributor send me a new bolt and since then it works flowless.

I donot mean that you need a new bolt but if you have a someone near by who has Pardini give a try and change the bolt if it helps.

by gwhite 12/2/2024, 7:42 am

Dusko wrote:My pardini is 2017. In both.22 and .32 I have 13 o rings in each bolt.
Diagram I posted, I am not sure which model year is it for but it clearly shows both( o rings and back buffer). I can see at the back of my frame I have something but you are right, it doesn’t look like a green buffer that older models have. If that black buffer isn’t the solution to my problem I don’t know what else I can do

That's odd. Alex at Pardini was the one who told me the .32 bolts didn't use the internal buffer. This was recently, too. Maybe he assumed the modified buffer might be needed if we had an older .32 conversion.

I coach a college team, and I needed to modify the internal green buffer for an older .22 pistol that was donated to the team. All our other Pardinis use the O-ring buffer. We have a spare bolt which uses the O-ring buffer to swap in if we have a problem in a match. Modifying the internal green buffer on the older pistol means we can use the spare bolt on that pistol as well.

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