Can newb question

mospeada · 04-15-2009

I've got many questions, but first the more pertinent.

Is it possible to use a can for a larger caliber on a smaller caliber (say 45ACP & 9mm)? Not ideal I realize, but maybe practical?

shooter521 · 04-15-2009

Quote:

Originally Posted by mospeada

Is it possible to use a can for a larger caliber on a smaller caliber (say 45ACP & 9mm)? Not ideal I realize, but maybe practical?

In some cases yes, in others no; it depends on a lot of things. Best to check with the mfr. and see what they recommend or approve.

alfahornet · 04-16-2009

What is meant by a can? I know this probably sounds stupid but been trying to figure this out for a while. Thanks.

mospeada · 04-16-2009

Can=Suppressor. It looks like a can on the end of the barrel.

I have a followup question, is the effectiveness of the suppressor affected by caliber in general? Is a 45acp suppressor quieter because the round is slower?

shooter521 · 04-16-2009

Quote:

Originally Posted by alfahornet

What is meant by a can?

"Sound suppressor" or "silencer".

Quote:

Originally Posted by mospeada

I have a followup question, is the effectiveness of the suppressor affected by caliber in general?

Absolutely. .22LR is one of the easiest calibers to suppress effectively; rifle calibers like 5.56 are much, much more difficult. Bullet diameter and velocity, as well as suppressor volume and baffle design all come into play. There's also a bunch of physics stuff involved that's WAY over my head... all I want it to do is go "pew-pew".

Quote:

Is a 45acp suppressor quieter because the round is slower?

"Quieter" than what?

mospeada · 04-16-2009

Quote:

Originally Posted by shooter521

"Quieter" than what?

9mm either normal or sub-sonic.

VUPDblue · 04-19-2009

Initially, common sense would dictate that a .45 can would be more effective at what it is intended to do than, say a 9mm can because the .45ACP is a heavy, slow projectile. This is not the case. A .45 is pretty difficult to suppress to the level of a suppressed subsonic 9mm. One big reason is the bore diameter. A larger bore leads to more gasses excaping through it, which equals a louder report. This reason is exactly why a suppressed subsonic.22lr round is pretty much 'Hollywood' quiet. Small, slow projectile, and small bore diameter coupled with a relatively low volume of propellent gasses equals a very efficient (read:quiet) package. Suppressors are a tricky beast and to really know and understand them, you just have to use them. You'll get a variety of answers to your questions depending on who you ask, but as I said before, you just have to experiment with the darn things to learn for yourself. In a nutshell, the answer to your question of: is the effectiveness of the suppressor affected by caliber in general? is YES, but not for the reasons you may have initially thought.

mospeada · 04-19-2009

Quote:

Originally Posted by VUPDblue

Initially, common sense would dictate that a .45 can would be more effective at what it is intended to do than, say a 9mm can because the .45ACP is a heavy, slow projectile. This is not the case. A .45 is pretty difficult to suppress to the level of a suppressed subsonic 9mm. One big reason is the bore diameter. A larger bore leads to more gasses excaping through it, which equals a louder report. This reason is exactly why a suppressed subsonic.22lr round is pretty much 'Hollywood' quiet. Small, slow projectile, and small bore diameter coupled with a relatively low volume of propellent gasses equals a very efficient (read:quiet) package. Suppressors are a tricky beast and to really know and understand them, you just have to use them. You'll get a variety of answers to your questions depending on who you ask, but as I said before, you just have to experiment with the darn things to learn for yourself. In a nutshell, the answer to your question of: is the effectiveness of the suppressor affected by caliber in general? is YES, but not for the reasons you may have initially thought.

Nice information, thanks alot! I just need to get a threaded barrel and get this ball rolling...

redneckmedic · 04-20-2009

It seems to me the problem would be getting the barrel diameters and threads to match. But other than that, yes maybe not as effective...but that is only logic

jrainw · 04-20-2009

TROS makes thread adaptors for suppresors, I bought one to run a .30 cal suppresor on an AR in 5.56 and it worked great.

My experience is smaller bore diameter=better suppresion. .22lr best, .30 cal subsonic very close second, 9mm not in the same ballpark even subsonic.

04-15-2009	#1 (permalink)
mospeada Sharpshooter Join Date: Sep 2008 Location: Bloomington Posts: 879	Can newb question I've got many questions, but first the more pertinent. Is it possible to use a can for a larger caliber on a smaller caliber (say 45ACP & 9mm)? Not ideal I realize, but maybe practical?

04-19-2009	#7 (permalink)
VUPDblue NFA User and MCFG V.P. Join Date: Mar 2008 Location: Wayne Township Posts: 3,498	Initially, common sense would dictate that a .45 can would be more effective at what it is intended to do than, say a 9mm can because the .45ACP is a heavy, slow projectile. This is not the case. A .45 is pretty difficult to suppress to the level of a suppressed subsonic 9mm. One big reason is the bore diameter. A larger bore leads to more gasses excaping through it, which equals a louder report. This reason is exactly why a suppressed subsonic.22lr round is pretty much 'Hollywood' quiet. Small, slow projectile, and small bore diameter coupled with a relatively low volume of propellent gasses equals a very efficient (read:quiet) package. Suppressors are a tricky beast and to really know and understand them, you just have to use them. You'll get a variety of answers to your questions depending on who you ask, but as I said before, you just have to experiment with the darn things to learn for yourself. In a nutshell, the answer to your question of: is the effectiveness of the suppressor affected by caliber in general? is YES, but not for the reasons you may have initially thought. __________________ Silencers have *never* been illegal! Need a place to shoot? Check us out at MCFG. We're on the West side! INGO Rules Of Conduct Classifieds Rules READ THIS Email me

04-20-2009	#9 (permalink)
redneckmedic Fishers of Men Join Date: Jan 2009 Location: Greenfield Posts: 5,104	It seems to me the problem would be getting the barrel diameters and threads to match. But other than that, yes maybe not as effective...but that is only logic __________________ Blessed be the LORD, my rock, Who trains my hands for war, And my fingers for battle. Psalm 144:1

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04-16-2009	#3 (permalink)
alfahornet Marksman Join Date: Sep 2008 Posts: 605	What is meant by a can? I know this probably sounds stupid but been trying to figure this out for a while. Thanks.

04-16-2009	#4 (permalink)
mospeada Sharpshooter Join Date: Sep 2008 Location: Bloomington Posts: 879	Can=Suppressor. It looks like a can on the end of the barrel. I have a followup question, is the effectiveness of the suppressor affected by caliber in general? Is a 45acp suppressor quieter because the round is slower?

04-20-2009	#10 (permalink)
jrainw Plinker Join Date: Jul 2008 Location: Northern Brown County Posts: 34	TROS makes thread adaptors for suppresors, I bought one to run a .30 cal suppresor on an AR in 5.56 and it worked great. My experience is smaller bore diameter=better suppresion. .22lr best, .30 cal subsonic very close second, 9mm not in the same ballpark even subsonic.