Plus+p

[heiney]

Is there a problem with using PLUS+P ammo in the mil pro 145? i think that may be why the captive firing pin spring broke???

[Jake3501]

I would think rust or age of the firing pin spring would be a more likely reason. Do you regularly shoot +P or just occasionally?

What age is your PT 145?

[Jake3501]

The Mil Pro's are rated for +P

[olfarhors]

Is there a problem with using PLUS+P ammo in the mil pro 145? i think that may be why the captive firing pin spring broke???

the same problem shooting plus p through any weapon that is built for Plus P usage!
extra wear, extra money and extra recoil.

[RevolverFan]

Well, your PT145 is rated for +p usage, but it's still like olfarhors said: more power, more wear. Think about race cars engines. Those guys tear their engines down after every race, because the wear is very much accelerated.

This is what your pistol's owner's manual has to say:

“Plus-P’, “Plus-P-Plus” or other ultra or high velocity ammunition generates
pressures significantly in excess of the pressures associated with standard
ammunition. Such pressures may affect the useful life of the firearm or exceed
the margin of safety built into many pistols and could therefore be
DANGEROUS....

[pmooreknife]

Heiney, are you talking +P, or +P+? +P+ would be rough on anything. Including you.

Paul

[heiney]

no i only meant +P. The captive firing pin spring is steel but the rod that holds it captive is plastic and is the part that broke after 3 rounds of +P so its not from going crazy with the ammo or anything like that. It was an easy fix, the part was 2 dollars and change.....just wouldnt want it to break during a lead fight

[Montkun]

Which is exactly why i rather stick with standard loads using proven HP designs. There aren't many that still stand after getting hit with a standard load .45 ACP or two over the last 100 years.

[dbeardslee]

I shoot +P's in mine all the time, and aside from a little frame battering where the trigger bar hits the slide (which was easily fixed) it seems to like 'em just fine. I've got a little heavier recoil spring installed, and while I never had a problem with the plastic firing pin spring assembly, I just don't love plastic in that location. A number of members have had them break, and frankly I don't think it had anything to do with +P's. I made one out of a nail, a washer, and a nut just to make sure it wouldn't break, and it's been working just dandy for about 700 rounds now.



And it's probably worth adding that the additional recoil from +P's is going to have very little affect on the firing pin spring. It sends the striker forward into the primer, and then it rides the slide back. It's cocked as the slide goes forward which is probably going to have more to do with the recoil spring itself than the recoil. You might get a little bit more bounce, but I don't think it's really enough to make much difference with the firing pin spring. And +P's are only 10% higher pressure than standard pressure loads.