351 WINCHESTER
Member
Do the new 365's still have the primer swipe?
P365 Primer swipe?
- Thread starter 351 WINCHESTER
- Start date
- Status
I have three of them and none of them do it.All are great little pistols.One's a P365XL,one's a brown and tan NRA edition and one's a basic black one.The XL and the black one have Wilson Combat grip modules.I've seen pics of swiped primers,but the three I have don't seem to have any problems at all.
dh1633pm
Contributing Member
Mine doesn’t. Got it last December.
Alllen Bundy
Member
I bought my P365 in October of 2020. There has not been any sign of primer drag. Any P365 striker with a beveled firing pin tip will not likely have any primer drag.
There were some issues with light primer strikes that were caused by the newer one piece striker spring retainer. It did not allow the firing pin to protrude sufficiently past the breech face. This one piece retainer could be sanded on one face to allow for further penetration of the firing pin, or you could just install the original two piece striker spring retainer. To the best of my knowledge Sig went back to using the two piece striker spring retainer.
Can anyone with a newer P365 series pistol confirm whether or not there is a one piece or a two piece striker spring retainer in their pistol?
Originally Sig used two springs on the striker. Sig allegedly started only using one striker spring. Can anyone with a newer P365 series pistol confirm whether or not there are one or two springs on the striker assembly?
There were some issues with light primer strikes that were caused by the newer one piece striker spring retainer. It did not allow the firing pin to protrude sufficiently past the breech face. This one piece retainer could be sanded on one face to allow for further penetration of the firing pin, or you could just install the original two piece striker spring retainer. To the best of my knowledge Sig went back to using the two piece striker spring retainer.
Can anyone with a newer P365 series pistol confirm whether or not there is a one piece or a two piece striker spring retainer in their pistol?
Originally Sig used two springs on the striker. Sig allegedly started only using one striker spring. Can anyone with a newer P365 series pistol confirm whether or not there are one or two springs on the striker assembly?
halfmoonclip
Member
- Joined
- Feb 4, 2011
- Messages
- 2,827
The issue caused great excitement on the SIG forum early on, combined with a run of substandard strikers. The two apparently had no connection, but there was thought out there that the primer drag was causing the firing pin breakage.
The complaints have petered off to nothing at all; I was surprised to see it here.
For the OP, as others have noted, the beveled firing pin tip has eliminated the problem.
Moon
The complaints have petered off to nothing at all; I was surprised to see it here.
For the OP, as others have noted, the beveled firing pin tip has eliminated the problem.
Moon
351 WINCHESTER
Member
I bought one new and I was assured by Sig that the problem was fixed. Upon firing the problem was not fixed so I sold it to a good friend as I could not trust it due to broken strikers in the past. As I recall mine was made April 2019.
Have a P365X born in early 2022, forgot the month. Mostly no primer swipes, but on hot loads +P 124 HP it will do it. Thinking it is running the slide faster and pressure is up some so it shows some primer swipe. Nothing like the pics I have seen on the earlier FP design.
halfmoonclip
Member
- Joined
- Feb 4, 2011
- Messages
- 2,827
What has to be happening; the short size of the package means the barrel doesn't have much time to drop out of engagement with the slide; the firing pin doesn't have time to fully retract while the breech (and its cartridge) drop. The angled firing pin tip cams the firing pin out of the way.
But the guns run fine. And the firing pins don't break.
Spend some time on SIGTalk. There's a whole thread, with no recent entries.
Moon
But the guns run fine. And the firing pins don't break.
Spend some time on SIGTalk. There's a whole thread, with no recent entries.
Moon
Fine Figure of a Man
Member
Mine does and I don't care. If the subject hadn't been brought up here a while back, I would not have noticed.
Why people worry about it is beyond me.
I have somewhere between 4K to 5K rounds through it with maybe half a dozen malfunctions, only 1 or 2 that weren't caused by the ammo.
Why people worry about it is beyond me.
I have somewhere between 4K to 5K rounds through it with maybe half a dozen malfunctions, only 1 or 2 that weren't caused by the ammo.
Alllen Bundy
Member
If the firing pin is being side loaded, it could cause a stress fatigue failure resulting in the firing pin breaking. That is why you should be concerned about it.
351 WINCHESTER
Member
Actually they did have some strikers break at the tip. I know for a fact that Sig tried at least 3 different designs before the got it "right". I was assured by Sig that the problem was fixed, but when I shot mine it had primer swipe as bad as I have ever seen. Maybe it would never break or maybe it would, but I know it's a gun I could never trust.What has to be happening; the short size of the package means the barrel doesn't have much time to drop out of engagement with the slide; the firing pin doesn't have time to fully retract while the breech (and its cartridge) drop. The angled firing pin tip cams the firing pin out of the way.
But the guns run fine. And the firing pins don't break.
Spend some time on SIGTalk. There's a whole thread, with no recent entries.
Moon
Fine Figure of a Man
Member
"Side loaded"? Slightly swiping the brass it has just struck as it is pulled away. I am not concerned.
Anyone that is worried about it can replace the striker every few thousand rounds for $50.
Old Dog
Member
No.
Wifey bought one a couple months back, to go with the three I'd bought over the past couple years.
Anyway, it's not an issue. The pistols -- even the early ones -- still shoot accurately and are reliable.
Last edited:
halfmoonclip
Member
- Joined
- Feb 4, 2011
- Messages
- 2,827
Followed this in real time on SIGTalk. The breakage was from an order of duff firing pins. The 'three different types' were about avoiding the 'swipe' marks, rather than the actual breakage.
I've put a bunch of rounds downrange through perhaps seven guns, with at least two striker designs. No problemo, so I trust mine. YMMV.
Moon
Alllen Bundy
Member
I was seriously considering buying an aftermarket striker milled from a high strength steel alloy billet. However, it turned out that these aftermarket strikers were also suffering from firing pin breakage.
I haven't seen any primer drag on 6 different cartridges shot from my P365. I also haven't seen any reports that chisel tip firing pins having had any breakage issues. So for now I'll continue to use the stock Sig striker. When the round count becomes high I'll replace the striker.
FYI, my new p365XL was made in June 2022. The striker appears to only use one spring and does not have the return spring previously used. I haven't removed the striker, but if you push the striker safety down, gravity will pull the firing pin through the breech face. My P365 that I purchased in October 2020 does NOT have any firing pin protrusion when you push the striker safety down.
I haven't seen any primer drag on 6 different cartridges shot from my P365. I also haven't seen any reports that chisel tip firing pins having had any breakage issues. So for now I'll continue to use the stock Sig striker. When the round count becomes high I'll replace the striker.
FYI, my new p365XL was made in June 2022. The striker appears to only use one spring and does not have the return spring previously used. I haven't removed the striker, but if you push the striker safety down, gravity will pull the firing pin through the breech face. My P365 that I purchased in October 2020 does NOT have any firing pin protrusion when you push the striker safety down.
Last edited:
- Status
Similar threads
