Too Hot ?? Is Prvi Partizan Ammunition 357 Magnum 158 Grain Semi-Jacketed Hollow too

Austin111

Austin111

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is anyone using this ammo? I have a 627 V-Comp and been firing .38 + and .357 through it.
I came across this on MidwayUSA and has following specs:

Prvi Partizan Ammunition 357 Magnum 158 Grain Semi-Jacketed Hollow

Technical Information

Caliber: 357 Mag.
Bullet Weight: 158 Grains
Bullet Style: Semi-Jacketed Hollow Point
Case Type: Brass

Ballistics Information:
Muzzle Velocity: 1608 fps
Muzzle Energy: 907 ft. lbs.

I bought this revolver to use, but not abuse.
Any experience is appreciated.
 
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Almost nothing available commercially will be too hot. The advertised velocities can vary depending on the test barrel length used. Some using 6+" barrels can have some impressive sounding stats.
 
Yes they never tell you the barrel length they are using to get those velocities. Only companies like Buffalo Bore advertise the barrel length for each load and they test each load from 2", 3", 4", 5" and 6" usually. That is useful info. But the info you get from most manufacturers is totally useless without barrel length. My guess is that velocity is from a 6" barrel.

Whatever you buy commercially, even hot loads from Buffalo Bore, your 627 can handle all day long.
 
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I would pretty much agree with Rick A, but the salient word in his reply is "almost". He also hit the nail on the head in his reference to test barrels. I went on PP's website and found that they used a 10" test barrel. Your 627 will achieve significantly less velocity with its shorter barrel and the B/C gap.

One troubling aspect is that PP does not manufacture in the US and therefore is not a member of SAAMI. There is also nothing to indicate that their ammo is made to SAAMI standards. Nor does the site indicate they are a member of the European equivalent of SAAMI - C.I.P. ("Permanent International Commission for the Proof of Small Arms"). The only certification they show is a 9001 certification, which is a quality of process standard - not a safety standard.

Did not mean all this as a slam on PP. If the ammo was dangerous we would have heard tons of Internet lore, and that is not the case. So, again, factory ammunition will almost never be too hot.

Adios,

Pizza Bob
 
I don't think the 627 can be abused much. That's an N frame, you would need to consistently shoot the absolute hottest ammo for years and years
 
Thanks for the input everyone. I bought it from AIM Supply for $17.50/bx of 50. When I saw they were still in stock, I began to question if I was the only customer. Then I saw Midway had for a little bit more but the rep couldn't give me any details on it. So once again I find my answers here, on The Forum.
Thanks, Ill post my results after I hit the range in the next few days.
Austin
 
Got back from the range a little while ago. The Prvi Partizan Ammunition 357 Magnum 158 Grain Semi-Jacketed Hollow shot well, accurate, nice kick to it but had a different odor (hmmm, not harsh..just different. The range is well ventilated so I'm good with it.
I also fired a box of Magtech .357 Magnum 158gr Semi-JHP 50rds 357B for comparison. I like the power of the Prvi better and I had about 4 light primer strikes with the Magtech. I didn't have any with the Prvi or the 100 rounds of ZERO .38special I fired as a cordial.
The revolver is cleaned and putaway (for now). It is a great revolver.
Thanks for everyone's input.
 
Pizza Bob said:
One troubling aspect is that PP...is not a member of SAAMI. There is also nothing to indicate that their ammo is made to SAAMI standards.
Click to expand...

But I find it somewhat less troubling in the case of PP than I do in those cases where the same appears true of selected 'boutique' manufacturers here in the states. While DoubleTap and Black Hills, among a few others, are SAAMI supporting members, I just don't see much if anything from anyone to indicate routine testing of ammo (other than to chronograph it).

And in fact, I've not been able to find anything at the SAAMI site that even suggests member companies have agreed to comply with SAAMI recommendations--sure, it seems 'obvious' they would--I'm just saying that isn't indicated anywhere I've yet found.
 
Under Downloads on the PP site, their 57 page catalog includes an outstanding presentation of all the ammo and component specs necessary.

Countries outside the US have their own version of SAAMI, but I found no mention of it on any pages of the PP site. I know this from understanding the markings on my Uberti guns.
 
Sorry OP, I have no knowledge of PPU revolver ammo.
Their m193, 5.56MM, on the other hand is NICE STUFF.
Accurate, loaded to spec, easy clean-up and reasonable in price. I keep 3K on hand. And the brass is decent for reloading.

PPU, in my experience, is good ammunition.
 
I realize this is an older thread, but for anyone with the same question that finds this discussion I thought I’d contribute a couple of things:

  1. I went to Prvi Partizan’s site, and they actually do give a test barrel length: it’s 254mm, or 10”.
  2. I have heard but cannot confirm that today's SAAMI spec for .357 Magnum is lower pressure than original .357 Magnum loadings, and that CIP is closer to those original loadings. So the story goes, factory .357 Magnum ammo has always been fine in the Model 27 / pre-27 and it’s derivatives, but since gun companies started offering much smaller guns in the chambering SAAMI decided to play it safe and lower the pressures. If someone else out there can confirm or deny this claim I’d be appreciative. I can say from personal experience shooting an old unopened box of 70s .44 Magnum from a gun show that it certainly appeared to be higher pressure than any contemporary factory ammo I’ve shot, so the story sounds reasonable (it should be noted that even Elmer Keith criticized factory .44 Magnum as being too hot, I’ll see if I can find where I read that in “Gun Notes”).
 
Arik said:
I don't think the 627 can be abused much. That's an N frame, you would need to consistently shoot the absolute hottest ammo for years and years
Click to expand...
My dad just sent a Model 27 from the 80's back to S&W for a timing issue. He bought the revolver used from a friend at Christmas. Smith & Wesson said that an excessive amount of hot 357 Mag rounds and their casings slamming back, had caused an indentation in metal near the firing pin. I guess casings were catching on it when the cylinder rotated.

The S&W gunsmith said that maybe a welder could fill that spot. My dad's neighbor teaches at a welding school so he might try that once he gets it back from S&W. And the guy who sold him the M27 is now giving my dad a 3 1/2 inch M27 instead.
 
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