Anyone here have porting that looks like this ?


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GUNKWAZY
December 7, 2004, 12:26 PM
This little puppy has a Compensator done by a company that goes by JP. Does anyone here have one like this ?
I was curious as to the cost of this process and how you like yours if anyone here has their gun done like this. Here's a couple pics....

http://members.aol.com/toykwazy/pythonported.jpg

http://members.aol.com/toykwazy/pythonported2.jpg


The barrel is marked JP and has a bullet firing towards the end of the barrel for the company logo.

Jeff (GUNKWAZY)

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JoeHatley
December 7, 2004, 02:46 PM
That looks a lot like the work of www.jprifles.com

Bet it barks!!

Joe

Bullet
December 7, 2004, 04:13 PM
I had Mark at Pinnacle Guns install a compensator on my 686. Real nice machining. Check these out.

http://www.pinnacle-guns.com/revolver_gallery.php

GUNKWAZY
December 7, 2004, 05:04 PM
How do you like shooting it with the Compensator ?

How much does a job like that run ?

Any more holes in her and it will double as a flute... :D

Jeff (GUNKWAZY)

Bullet
December 7, 2004, 06:14 PM
I like shooting my 686 with the comp. It kicks about like a 38 or maybe less. Hardly any upward movement at all. I had slots on the sides and the top plus the cone shaped holes too. A compensator also reduces FPS because it's like shortening the barrel. My barrel is a Shilen 7 inch but my comp takes about 2 inchs making the barrel shoot at about 5 inch speeds. It's been awhile since I had this done so you might check out prices on Pinnacle's web sight.

Standing Wolf
December 7, 2004, 06:33 PM
Tell me about the stocks on that Python, please.

GUNKWAZY
December 7, 2004, 07:08 PM
Wolf, those are the 2 piece grips made by Badger.
They are very comfortable.
Here's what they look like on a Blue S&W model 25.
This is the Rosewood ones....

http://members.aol.com/toykwazy/model252.jpg

Jeff (GUNKWAZY)

Standing Wolf
December 7, 2004, 10:11 PM
Gunkwazy:

Thanks, eh? I've got a set of Badger stocks on my pre-agreement model 60 that fit my hand perfectly, and another on a model 27 that don't fit the least bit well. The Badgers on your Python look like they'd fit my hand—and that's definitely interesting porting, too!

Fletchette
December 7, 2004, 10:31 PM
While the porting looks really cool, I do not see how it would reduce recoil or muzzle flip. Are there hole in the top that aren't visible?

GUNKWAZY
December 8, 2004, 08:25 AM
Hmmmm....

Good point. I just don't know, as there are no holes up top.
This is my first one like it with this type of compensator.

If you think about it though, have you ever shot a 300 winmag rifle ?
I have. If you've ever shot the same caliber rifle, say the Browning 300 winmag with the BOSS system, you'll see that they really work well.
After shooting the Browning with the BOSS, you can go home with your shoulder in tact. Shooting the same gun with-out the BOSS system may make you think twice about going through a box or 2 of ammo the next time. Those holes in the BOSS system surround the entire barrel, not just the top of the barrel and that system works very very well.

Jeff (GUNKWAZY)

targetshootr
December 8, 2004, 09:07 PM
That poor Python. (sniff). Won't the value of such a gun plummet?

7.62FullMetalJacket
December 9, 2004, 12:29 AM
At least the guy to the right and left will stay warm :D

Talk about a BBQ gun. Looks like porting for a howitzer.

Leadbutt
December 9, 2004, 12:41 AM
DAMN. What a way to mess up a prefectly good Python :banghead:

Fletchette
December 9, 2004, 12:50 AM
I thought the BOSS system was for accuracy, not recoil. I remember reading somewhere that it is intended to allow minute adjustments to the resonant frequency of the barrel so that the end of the barrel is not moving at the moment the bullet leaves.

I suppose some of the gas behind the bullet would slam into the forward side of the holes, but the recoil that reduces would be equivalent to the same amount of mass stopping at the end of the barrel.

What would a hot .357 use, ~ 20 gr of powder (H110)? So if 20% of the gas went out the sides, 4 gr would "stop" at the end of the barrel. For a 125 gr bullet: 4/125 = 0.032. So a 3.2% reduction in recoil.

Well, it looks cool! :)

GUNKWAZY
December 9, 2004, 05:14 AM
Don't feel bad for the Python she's a shooter, not a safe queen. She likes to go out and play. :D


As for the BOSS system on the Browning, it reduces recoil like you would not believe. It reduces the recoil to the shooter, but not to the people next to the person shooting. I was jumping out of my shoes every time my friend shot his 300 WM. Until he stood next to me and I shot it, he had no idea the force that was being driven around him. It's an enjoyable gun to shoot with that BOSS in place.
It may not be for reducing recoil, but I can assure you it does.

Jeff (GUNKWAZY)

only1asterisk
December 9, 2004, 05:34 AM
Fletchette,

I don't think your calculations take into account the velocity drop of the gasses at the end of the barrel. Hard to measure.
Edited to add: After BSing with a couple of engineers we think you might be able to get up to 25% recoil reduction.


David

Fletchette
December 9, 2004, 09:34 PM
I don't think your calculations take into account the velocity drop of the gasses at the end of the barrel. Hard to measure.
Edited to add: After BSing with a couple of engineers we think you might be able to get up to 25% recoil reduction.

I made a lot of assumptions that I didn't post.

First, I assumed that 20% of the gas dropped all of its velocity, in that it exits those port holes at a right angle to the barrel. So in reality, the recoil reduction might even be less than 3%.

It is possible to get close to a 25% recoil reduction from the gas, but you would need to direct the gas backward. A good example of this would be the compensator on a Barrett 50. The plates deflect the gas to the sides and backward a bit. This provides thrust to the barrel to counter recoil.

targetshootr
December 10, 2004, 07:02 PM
I have always heard Pythons are not the stoutest guns and stiff loads could lead to issues fairly soon and I assume the porting is to counteract such loads. So I would like to ask you to please consider rebarrelling the gun or maybe give it up for adoption. As a Python owner, it is blasphemy. Blasphemy!!

Protector
December 10, 2004, 09:55 PM
Gunkwazy,

I have this type of porting on S&W 686. I had it done by J.P. many moons ago. I have carried this as my duty gun in the past...and may do so again, just to shake up some new young deputies who seem to feel if isn't a Glock it's not a cops gun.

I think the porting works great, making even the hottest loads comfortable to shoot. For those who aren't grasping how this porting works, the gasses exit the barrel, expand and strike the flat surface of the front of the port, exerting force forward, instead of down, as convential porting does.

I have taken a stab at attaching my first ever picture. If it comes thru...No, that is not my standard uniform! We were just having some fun with kilts and short sleeve uniform shirts!

GUNKWAZY
December 11, 2004, 07:28 AM
Hey Protector your first photo worked. Congrats.
Now, about those bagpipe lessons...

By the way, all you people that think I've shamed the Colt heritage by having a Colt Python that was designed in the mid-50's and made it look and feel as though it was designed in the 2000's with it's modern day barrel porting and great looking finger groove grips, you'll feel much better knowing that it's been converted back and all is well in Python land. :D
Here's a picture so you can rest easier.

http://members.aol.com/toykwazy/python.jpg

Jeff (GUNKWAZY)

Riverrat66
December 13, 2004, 07:45 PM
This is only my $.02 worth.
While the porting looks really cool, I do not see how it would reduce recoil or muzzle flip. Are there hole in the top that aren't visible?
I agree with Fletchette. Porting on top of the barrel was meant to reduce muzzle flip.
If you think about it though, have you ever shot a 300 winmag rifle ?
I have. If you've ever shot the same caliber rifle, say the Browning 300 winmag with the BOSS system, you'll see that they really work well.

I own the Browning A-Bolt M-1000 Eclipse w/Boss in 300 Win. mag w/26" barrel. It is a joy to shoot. The Boss system does indeed reduce felt recoil! You can buy the the Boss system without the compensator, thus no porting just the adjustment for accuracy (weight of bullet, etc.) And it makes a huge difference in felt recoil. But you don't clear out the entire range when you fire it either!

I have a Ruger SP101 357 mag. that was a handful to fire. Everyone called it the Asskicker! I had it ported and now, out of all my handguns, it's my favorite carry gun.

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