lbsrdi 1,078 Posted September 8, 2011 Report Share Posted September 8, 2011 as far as the recoil impulse from a .22LR is concerned i got one word for you a "swaging barrel".....if anyone here even knows what i am talking about i will be highly impressed....doing a google search will most likely not yield any material on this subject as it is a little known process....but in a nut shell it will increase the velocity and the recoil of a standard .22LR...i am up to my eyeballs in something til May of this year, if no one has run with the idea of producing a turn key bumpfire 10/22 rifle i may run with it...and a swaging barrel will be part of the design.... Man, you really are a pompous asshole. He 'predicted' you were gonna say that. 1 Quote Link to post Share on other sites
ckrockets 24 Posted September 8, 2011 Author Report Share Posted September 8, 2011 im not familiar with the term swaging barrel. can you explain exactly how it works? i will first let's see if anyone else knows what it is.... Quote Link to post Share on other sites
ckrockets 24 Posted September 8, 2011 Author Report Share Posted September 8, 2011 (edited) as far as the recoil impulse from a .22LR is concerned i got one word for you a "swaging barrel".....if anyone here even knows what i am talking about i will be highly impressed....doing a google search will most likely not yield any material on this subject as it is a little known process....but in a nut shell it will increase the velocity and the recoil of a standard .22LR...i am up to my eyeballs in something til May of this year, if no one has run with the idea of producing a turn key bumpfire 10/22 rifle i may run with it...and a swaging barrel will be part of the design.... Man, you really are a pompous asshole. that statement was not meant to be arrogant...i did not even know such a thing existed until last year....the idea is from the 70's or 80's, can't remember, it never got much attention from what i could tell...i imagine that the idea is so old and never found a niche that there probably is not any info on the subject on the internet... Anyone ever heard of it? Edited September 8, 2011 by ckrockets Quote Link to post Share on other sites
csspecs 1,987 Posted September 8, 2011 Report Share Posted September 8, 2011 Swaging barrel. Being a barrel that reduces in diameter to increase constriction. I beleive they tried that in several large bore cannon as a way to increase muzzle velocity (1800s if I recall correctly). Its basically like shooting overbore ammo, it increases the pressures a lot. My thoughts on swagging barrels is that they will have more pressure variations as additional constriction will affect each alloy of lead differently.. But I've never made one, so I can't say for sure. PS. Swaging Barrel is two words. (sorry for the multiple edits, brain is running slow right now). 3 Quote Link to post Share on other sites
ckrockets 24 Posted September 8, 2011 Author Report Share Posted September 8, 2011 (edited) Swaging barrel. Being a barrel that reduces in diameter to increase constriction. I beleive they tried that in several large bore cannon as a way to increase muzzle velocity (1800s if I recall correctly). Its basically like shooting overbore ammo, it increases the pressures a lot. PS. Swaging Barrel is two words. BINGO! I always took you for a knowledgeable person... Did you know someone tried it with the .22LR? Edited September 8, 2011 by ckrockets Quote Link to post Share on other sites
csspecs 1,987 Posted September 8, 2011 Report Share Posted September 8, 2011 No I don't know of anyone that tried it in a rifle. But I am aware of hardness variations that exist in commercial .22 ammo. Its just a variation that you would need to factor for. I did something like that in a cloud gun (air powered BB machine gun). Over bored 'chamber', then constricted near muzzle to get the velocity up. 1 Quote Link to post Share on other sites
ckrockets 24 Posted September 8, 2011 Author Report Share Posted September 8, 2011 (edited) No I don't know of anyone that tried it in a rifle. But I am aware of hardness variations that exist in commercial .22 ammo. Its just a variation that you would need to factor for. I did something like that in a cloud gun (air powered BB machine gun). Over bored 'chamber', then constricted near muzzle to get the velocity up. you're definitely right about the differences in Brinell hardness from batch to batch.... I'll see if I can find the article, scan it and post it to this thread....he got some really interesting results from .22LR..... Edited September 8, 2011 by ckrockets 1 Quote Link to post Share on other sites
ckrockets 24 Posted September 8, 2011 Author Report Share Posted September 8, 2011 (edited) im not familiar with the term swaging barrel. can you explain exactly how it works? so basically what happens is the bore diameter starts out normal and gradually decreases as it reaches the muzzle...this has the affect of swaging the lead bullet down to a smaller caliber as is it travels down the barrel....which increases the pressure of the hot expanding gasses behind the bullet which in turn increases the velocity of the projectile... don't hold me to these numbers their fictitious it's just so u have an idea of what i am talking about... if same ammo was used for the below two examples... normal 22LR barrel: solid lead 40gr bullet leaves barrel at 1250fps with a diameter of .2170" swaging 22LR barrel: solid lead 40gr bullet leaves barrel at 1600fps with a diameter of .1680" (these are the fictitious numbers but you get the point) Edited September 8, 2011 by ckrockets 1 Quote Link to post Share on other sites
Saiga_rom 91 Posted September 8, 2011 Report Share Posted September 8, 2011 im not familiar with the term swaging barrel. can you explain exactly how it works? so basically what happens is the bore diameter starts out normal and gradually decreases as it reaches the muzzle...this has the affect of swaging the lead bullet down to a smaller caliber as is it travels down the barrel....which increases the pressure of the hot expanding gasses behind the bullet which in turn increases the velocity of the projectile... don't hold me to these numbers their fictitious it's just so u have an idea of what i am talking about... if same ammo was used for the below two examples... normal 22LR barrel: solid lead 40gr bullet leaves barrel at 1250fps with a diameter of .2170" swaging 22LR barrel: solid lead 40gr bullet leaves barrel at 1600fps with a diameter of .1680" (these are the fictitious numbers but you get the point) yea that makes sense. see, im not a gunsmith, but i have been studying physics for awhile. i would think it would be pretty important to not have the barrel decrease significantly in diameter. it can be pretty ugly if the projectile gets stuck in the barrel. 1 Quote Link to post Share on other sites
ckrockets 24 Posted September 11, 2011 Author Report Share Posted September 11, 2011 keep those negative reputation votes coming viados....this place is as bad as barfcom..... Thanks to all those that positively contributed to this thread that I started.... 1 Quote Link to post Share on other sites
opto_isolator 3 Posted September 11, 2011 Report Share Posted September 11, 2011 All you guys are forgetting a few things. #1 - they can ban the use of lead in bullets, making ammo prohibitively expensive for the average joe. #2 - they can go back to the Clinton days and ban high capacity magazines.... Ammo really really expensive or no way to effectively dump countless rounts down-range = bumpfire that's worthless. Quote Link to post Share on other sites
horatio 515 Posted September 15, 2011 Report Share Posted September 15, 2011 Does anyone know if these are legal in Cook county IL? I've looked through a sites (including vendors), called a few local local gun shops and asked around. The collective answer - idunno. Most shops don't want to carry it because they feel it will "potentially attract unwanted attention" I don't care so much about that as a potential for the BAtf to take them. One of the shops I talked to mentioned the gsg 22 with the faux silencer that recalled/stopped by the batf after a "reevalation" of the ruling. It seems sadly likely that these will suffer the same fate. My question is- is something like this possible? i'm still fairly new to the firearms hobby but this is just one piece of badassery i just can't pass up on. ( for the record i want 2 for a pair of s&w m&p 22's for me and the wife). but i hate to drop 600+ and then be told no no Quote Link to post Share on other sites
ke4yqd 1 Posted October 1, 2011 Report Share Posted October 1, 2011 I put this stock on a DPMS Panther 5.56 Oracle. Not I can essentially shoot full auto for less than $1000!!! then my Saiga 12... Quote Link to post Share on other sites
ke4yqd 1 Posted January 4, 2012 Report Share Posted January 4, 2012 I got my cmmg 22lr bolt a month ago. It doesn't have enough recoil to cycle. So while it may work on the little 22 ARs, it didn't work on mine. Actually I just had an idea. It is possible that the buffer spring is taking some of my recoil. So maybe if I remove it before hand, or pin it back it may have enough recoil to work. I know this probably should go on the ar15 forums but, any thoughts? Quote Link to post Share on other sites
rentprop1 0 Posted January 4, 2012 Report Share Posted January 4, 2012 #3 Bill Akins sues Slide Fire for patent infringment. Tony not to stir the pot but looks like if you can't beat them join them http://www.whenshtf.com/showthread.php?t=45738 Bill is Revolverteer on that site,... , kinda funny after he was banned under his name Bill Akins Quote Link to post Share on other sites
evlblkwpnz 3,418 Posted January 4, 2012 Report Share Posted January 4, 2012 Patents only protect very specific designs unfortunately, so even though Slide Fire did copy the idea off previous attempts, they did not duplicate it, they changed it enough to be considered a variant. like why Mike didn't get to sue promag for their md-20 copy. And in fairness, Mike's design was a fairly straightforward copy of another 12-gauge drum design, modified for use with a Saiga-12. Innovation generally involves the use and adaptation of others' ideas for new or slightly different purposes. These slide fire stocks are not simply the Akins Accelerator less the springs. Yeah I think I know where they got the idea for the stock. Same concept? I think the product is a legal nightmare. Just imagine the next big school shooting happens, with your bumpfire stock. You can't wiggle out that your making hunting and sporting products with this thing. Its only function is to puke lead faster than anything else civilian legal. Needs that thing that goes up. keep those negative reputation votes coming viados....this place is as bad as barfcom..... Thanks to all those that positively contributed to this thread that I started.... I think scenario 2 could lead to a drop in registered full auto prices.... and I like that. 1 Quote Link to post Share on other sites
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