www.langdontactical.com
Bellator,Doctus,Armatus
Does anyone have any test results with round counts and performance for the new 10# hammer spring in a PX4?
I finally got my hands on a PX4 Compact through an online dealer. Not a GEL, so the first thing I did was go to LTT to replace those "wings" with Carry Levers. While I was on the site, I saw that a 10# spring was available, so I included one in my order. I went to the range and put 200 rounds through my new Beretta with the 10# spring. NO failures. I used the following ammo:
Federal American Eagle 124 gr. FMJ; 25 rds.
Federal Syntech 124 gr. TSJ; 15 rds.
Remington UMC 147 gr. FMJ; 20 rds.
Remington UMC 115 gr. FMJ; 50 rds.
CCI Blazer Brass 115 gr. FMJ; 45 rds.
CCI/Speer Training 115 gr. FMJ; 45 rds.
My experience with the factory spring was dry-fire only while I waited for a chance to get to the range. My parts from Langdon got here first, so in they went!
Don't know how I missed this. I put one in my PX4 D and ran about 100 rounds of my handloads (CCI 500 primers) with no issues. Out of 50 rounds of Winchester NATO-spec hardball, one required a second strike to fire. If I were to stick with standard commercial ammo or handloads with standard small pistol primers, I'd happily leave it in there. My current situation requires using small rifle primers for my next batch of 9x19 handloads, so I'll be going back to heavier hammer springs.
Interestingly enough, yesterday we removed the 11# spring from our PX4 SubCompact. After 14,350 rounds of good ignition with different brands of ammo it started getting light strikes frequently with Winchester white box. We took the same lot of ammo and fired hundreds through our PX4 Compact with an old D spring and my shooting partner's PX4 full size with an old D spring and all ammo ignited just fine... no light strikes.
We put the earlier D spring back in the SubCompact with 500 rounds on it and will start testing tomorrow.
I have 16,089 rounds on the 11# spring in my PX4 .45 range pistol with no light strikes on a variety of ammo, including Winchester white box.
I agree. In this case it had a 100% disassembly for detailed cleaning 3,050 rounds ago. After the next detailed cleaning we could try putting the 11# spring back in. However, if after only 3,000 rounds it would need a re-cleaning to run that spring it would become impractical for us to have to clean more frequently to keep the spring working.