357 Magnum revolver problems

[RiverRider]

SOMEWHERE---don't ask me where, I read that the S&W PC 327's barrel is rifled by some new process (I don't recall what it was called, but it was some kind of electrochemical process IIRC) that is suspected of being the root cause of lower velocities in these guns. It does not make a whole lot of sense to me, but there seems to be little known about it and I've seen nothing authoritative published.

 

[FOTIS]

Problem with 357 Magnum trr8

Hey guys I've got a Smith & Wesson from the performance center it's a 327 8 shot with a 5-in barrel. No matter what loads I have put into it so far it's always very very slow. I tried the 125 XTP

smith-wessonforum.com

 

[salmonchaser]

Problem with 357 Magnum trr8

Hey guys I've got a Smith & Wesson from the performance center it's a 327 8 shot with a 5-in barrel. No matter what loads I have put into it so far it's always very very slow. I tried the 125 XTP

smith-wessonforum.com

I thought rifle cranks could get technical. I read through the responses you received on the S&W forum. Those boys are dialed in!

 

[FOTIS]

I found out a few things after today's shoot.
The pistol is very accurate. Now if you increase the charge you will get your target velocity without any excess pressures, at least none that were visible to me. Moreover it is almost impossible to get full velocities with lighter bullets. With the updated .003" gap I got 1310 fps with the 125 xtp Hornady American Gunner factory.

With hand loads the125 xtp did 1400 fps with h110. Cases just dropped out of the cylinder.

The big surprise were the 165 Matt's hard cast with gas check. With Lil gun I reached 1401 fps!! Same as the 125!!! Recoil was harsh and again cases fell right out of the cylinder no problem. I will drop the load a grain and a half or so and keep it at around 1250 or so. That should be good for anything.

 

[xphunter]

Glad you got things figured out.
Hunting with the 357 or setting up for other things?

 

[FOTIS]

Ernie with the 165 Keith style hard cast at 1250 and 8 shots to boot and the light weight (scandium frame) I think it would be the perfect camp gun or walkabout gun.

 

[Slimfinn]

So reviving this because now that I have my Garmin when I go to the range I tend chrono most of my loads. Currently been testing my 41mag to get a hunting load, and brought my 4" 686+ the last time I went, I have 357 loaded with 158gr Nos with 15.5gr h110 and only got a 1028avg. So this weekend when I went to the range I brought 3 differnt 357's their avg with the same load, 6"gp100-1167fps, 4"686-1031fps, 3"dasa-1049fps.
I was a bit frustrated at first but, then when I thought about it, the S&W shoots well, is nice to shoot, and I'm not planning on carrying it for protection so why not just shoot and enjoy

 

[FOTIS]

I shot the Buffalo bore 125 jacketed hollow points the other day. Factory has them rated at 1700 ft per second and of course I got 1500 ft per second out of them. No access pressure even though they're not plus p. Shoots well so I'll live with it.

 

[JD338]

I shot the Buffalo bore 125 jacketed hollow points the other day. Factory has them rated at 1700 ft per second and of course I got 1500 ft per second out of them. No access pressure even though they're not plus p. Shoots well so I'll live with it.

Still a potent load!

JD338

 

[Vince]

Fotis,

My friend your problem is that it’s not a .41 Remington Magnum.

Vince

 

[diverdown]

I shot the Buffalo bore 125 jacketed hollow points the other day. Factory has them rated at 1700 ft per second and of course I got 1500 ft per second out of them. No access pressure even though they're not plus p. Shoots well so I'll live with it.

That's interesting. I've used a chrony on my P226 .357 Sig shooting Underwood 125 grain ammo. I'm getting just over 1500FPS. Other factory ammo comes in around 1350FPS. My handloads are coming in at around 1475FPS. I guess underwood knows how to work its magic.

 

[FOTIS]

Fotis,

My friend your problem is that it’s not a .41 Remington Magnum.

Vince

Oh I have a 41 mag.....

 

[Vince]

Oh I have a 41 mag.....

Then why are you playing with that inferior cartridge?

 

[JD338]

Then why are you playing with that inferior cartridge?

LOL

JD338

 

[Slimfinn]

Then why are you playing with that inferior cartridge?

He has 2 hands...

 

[FOTIS]

Right