I used to be big into comps and porting over 30 years ago.

Like anything else, it can turn into a rabbit hole.

Design has a significant impact.

Is the porting just holes or jet nozzles? Are they all the same size or each one gets progressively larger? How many ports?

On comps, expansion chambers or holes? Side chambers or not? How many chambers?

Then of course there is the full meal deal with both, ports AND comps.

You start mixing all of that up and sometimes porting is more effective, buy usually the comp is.

To paint a very broad brush, by having the extra weight of the comp at the end of the barrel, overall I’d say the comped gun will usually shoot flatter. But like most things in life, there are exceptions.

 

oh wow okay i did not know all of that, as you said it seems to be turning into a rabbit hole of sorts!

Not sure what jet nozzles are vs porting but i wanted to port my beretta 92fs barrel instead of putting a threaded barrel with a compensator

I think the porting would be about 6-8 holes

on comps i used to dabble in side ports too but not i only have the top cut out and usually it is 1-2 BIG holes

 

The jet nozzles are funnel shaped.

Let‘s say the hole which starts from inside the barrel is 1 mm in diameter. Then it funnels out to 3 mm when it reaches the top of the barrel. Sort of like your garden hose nozzle but in reverse. The sizes I used where totally made up for example sake.

 

ohhhh i didn't machining could be done that precisely for these things! i would require more research about this it seems then.....

Understood the example given

 

Just recently had my Prodigy 4.25 ported and it has made a good pistol great. Ported Prodigy

J

 

this looks reallllllly good!!

How has the shooting experience been like? Do you clean the barrel after each range visit or can you let it stay for a little while before cleaning?

Is carbon caking an issue?

 

The Beretta is set up perfectly for porting, so that is the direction I would lean towards with it. I have several comped and ported 9mm pistols, and while I think a true compensator is going to give you the most effect, a good ported set up, like V8s or Monsoon Lucky 7 or Dimebags, will get you very close to the same benefit as a single port comp for 9mm applications, with less hassle and investment. You will also likely see benefit of lowering the recoil spring weight by a couple pounds after the porting, as the ports, like a comp, take energy away from the recoil cycle.

 

OOOoooo i got you, im gonna go and google some of those suggestions you gave out to me! I want to go with the beretta option because of the exposed barrel no need to send in the slide as well.

Best part i think im going to get a few beretta barrels and try out different porting on which feels the best for me.

Good looking thanks!

 

True comps are in first place for felt / perceived recoil mitigation, v ports second place, inline ports in third. As ajp said, for a 92, ports are a no brainer.

 

True comps are in first place for felt / perceived recoil mitigation, v ports second place, inline ports in third.

This ^^

(its been my experience across several guns, yet some will push back on that.)

 

I have a few of both styles and can't say I'd buy another but I like what I have, and both have their plus and negative attributes.

Porting doesn't add weight but on mine gets the front sight dirty double quick. FO sights get black on my Ruger .357 Blackhawk and then there's a concern that the heat may melt the FO?

My Springfield V-16 recoils a bit less than my 5" 1911's and it's pretty well accepted that a bit of velocity is lost on Springfield's many ports on the V-16 but the added weight and length is an issue but it's a fun gun to shoot none the less.

A Comp is IMO better at reducing recoil but part of the effect is the extra weight at the muzzle, and on the down side adds length and weight.