My form one 30 Cal suppressor project.

CoffeeFreak

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My preliminary baffle stack. The can isn't going to be any longer then my subgun can build with the 3 lug mount. But it will have 11 baffles and use the internal Griffin Taper mount. The subgun can already performs as good as a 30 Cal YHM Phantom. I predict this new build is going to be "Mouse Fart" quiet!

View attachment 31640
 

CoffeeFreak

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So here is my thoughts. The performance to my ear is identical with 300BLK to the form one subgun can I built last month and I am very surprised by that. It had an inch more internal volume and more baffles with tighter bores. At first I was disappointed but I am doing this for the knowledge and I learned a lot about suppressors and the tech so I am kind of satisfied learning what I now know so it was worth it.

The only advantage that I gained with this can over the subgun can is I would trust the mounting system shooting supersonic 300BLK and 556/223 and probably would just keep to subsonics with the 3 lug. It does appear that the Griffin Revolution internal 3 lug mount, made of steel vs the one I'm using made of aluminum is rated for 300 supers and 556 though. So it is possible to make one that would work on anything I shoot using 3 lug.

It taught me a lot about volume, baffle design and answered a lot of questions I had. For example, why does my Gemtech Multimount greatly out perform my Bowers Cac 9. Because baffle design is much more important then the size of the suppressor. I also learned that my baffle design has been around since the beginning (thanks to Strobro32), used by Hirum Maxum and performs better then most cone and M baffles and as good as some of the best K baffles in modern cans. I also experienced my first POI shift and learned about that. Caused by the weight of the suppressor on the unsupported free float barrel it shoots 3 inches lower at 50 yards. The 3 lug upper doesn't shift even though they weigh the same because the barrel is supported by the hand guard end cap and all of my other weapons I shoot suppressed have heavier or short barrels that don't seem to suffer from it like the longer barreled weapon.

I think multi caliber is the future of suppressors. I think the subgun can verified that and would be my choice if I could only pick one. It explains why all the manufacturers are going in that direction. The cans I built perform as good as or better then any of the factory cans I have or have shot. I have one more can to build, another subgun can. The K will bust the the myths passed in this forum about the need for a huge can for full auto, although I think I have done that already. I paid for the form one so I might as well complete it. I may build out a new 22 can in the future, I am undecided.

Next time I am shooting with someone I will do some comparison videos of different cans shooting.
 
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chili17

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as you are finding out, baffle design and volume directly effect each other. It depends on what you are looking for. For sub blackout the best baffle design is going to be different than the most effective for design for supers. Volume would be different too. It is all compromise:)

Generally POI is going to be less on shorter barrels as they are more rigid, but yes, barrel length, suppessor weight and mounting method all have a effect to some degree

Larger volume cans sound better on some stuff to me. I think they are more host dependant. Some host sound great with some cans and not so good with others
 
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TheColtCollector

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all your research is impressive and makes me wonder why manufacturers got away from hiram maxim design over to different baffle designs. yours is just as quiet if not more silent
 

sniperdoc

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all your research is impressive and makes me wonder why manufacturers got away from hiram maxim design over to different baffle designs. yours is just as quiet if not more silent

This may be because of manufacturing difficulties or time considerations.
 

CoffeeFreak

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I'm thinking a lot of the design changes in suppressor technology has been driven by weight reduction. My can ended up coming in at 19 OZ. While lite by standards of 20 years ago, heavy compared to many of the new cans out there today.
 

chili17

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weight and size seems to be what has been driving the market the last 10yrs or so. Ironically, often at the cost of preformance
 

JohnFreeman

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Are those mod'ed freeze plugs?

Im getting ready to submit another F1 and want to build a can. There's a lot of options out there.
 

CoffeeFreak

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Are those mod'ed freeze plugs?

Im getting ready to submit another F1 and want to build a can. There's a lot of options out there.

Yes. Save your money. It performs well and I didn't spend a fortune on the premade 80% K baffles that are all the rage in the form1 forums.
 

Rag9

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My preliminary baffle stack. The can isn't going to be any longer then my subgun can build with the 3 lug mount. But it will have 11 baffles and use the internal Griffin Taper mount. The subgun can already performs as good as a 30 Cal YHM Phantom. I predict this new build is going to be "Mouse Fart" quiet!

View attachment 31640

Are those DM end caps?
 

CoffeeFreak

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Are those DM end caps?

Yes. Very good quality and the AR wrench cuts are nice. Are they worth the wait time or any better more functional than SD Tactical stuff I will say It's a tough call. I have no problems with my first build with an SD Tactical endcap and thread protector. But DM's stuff sure is pretty! :)
 

CoffeeFreak

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Both guns had 8" barrels. The round that didn't chamber was caused by all the dirt buildup from shooting Beau's reloads over the past few shooting sessions. I havn't ever cleaned the gun. It's also dry. I ejected the mag on purpose so I could charge the weapon and send the round home. The ammo was 220 remington. My can is significantly quieter.

https://www.youtube.com/watch?v=9ZrACmr9Re0

 
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