Re: Crowning
Posted: Thu Mar 10, 2016 10:38 am
Its obvious that Skippy is here to argue not to learn or share knowledge why respond.
Sound Suppressor Discussion
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How many bench rest rifles have you shot??silencer_kid wrote:you do know that was a pic just showing the various crown types, right?Samson1044 wrote:
If someone left a finish like that on the crown of my rifle id be PISSED ,
i guess Don Geraci is not in the majority group that say angled crown is better than 90.
most will tell us
"11 degree is standard, recessed or not. it is optimal in terms of reduction of instability in flight caused by gas blow by at the moment of the bullet's exit from the muzzle"
and
"11 degree crown is supposed to be the most accurate, at least in a rifle. It was tested and developed by benchrest shooters, who are guys that spend lots of time and money trying to put 5 rounds into 1 hole."
how much more accuracy do you get can be debated until man lands on Venus.
It's an exercise in futility to attempt to convince the smartest person around who knows everything, who bases his knowledge on theorized suppositions and who deals in exaggerated generalities, that facts based on scientifically controlled testing and experiences prove him to be wrong.Capt. Link. wrote:Its obvious that Skippy is here to argue not to learn or share knowledge why respond.
it wasnt an argument around 79 degree cut! re-read OP.Samson1044 wrote:
How many bench rest rifles have you shot??
yada yada yada
Earlier I thought of posting some pics of infants crowning, but my prefrontal cortex kicked in just in time.Shanks wrote:Didn't mean to start a war over the crown.
Shanks wrote:Didn't mean to start a war over the crown.
It really had less to do with the most shuper duper angle for a shuper duper bench gun and how my lathe is as far as 2° off on the compound as it was about reducing the length of cans on say, tacticool 300s or 556s
Thanks for the real scientific / technical input, however.
if you take a barrel and flute it it gets less stiff. but if you take two barrels of equal length and equal weight, one skinny, and one larger OD and fluted, the fluted one will be more stiff.Samson1044 wrote: just like there are a lot of people that think fluting a barrel will make it stiffer
The purpose of Fluting is to lower weight, increase heat dissipation area and yet retain the stiff girders limiting barrel-flexing. It gives nearly as much stiffness as a .825"OD barrel, by leaving the struts @ .825"OD while the grooves are .625"OD.fishman wrote:if you take a barrel and flute it it gets less stiff. but if you take two barrels of equal length and equal weight, one skinny, and one larger OD and fluted, the fluted one will be more stiff.Samson1044 wrote: just like there are a lot of people that think fluting a barrel will make it stiffer
This scenario only works because you increased the diameter to keep the total weight equal. There will obviously be more material in the taller flutes to offset the cut area.fishman wrote:if you take a barrel and flute it it gets less stiff. but if you take two barrels of equal length and equal weight, one skinny, and one larger OD and fluted, the fluted one will be more stiff.Samson1044 wrote: just like there are a lot of people that think fluting a barrel will make it stiffer
correct.texan_eagle_scout wrote:This scenario only works because you increased the diameter to keep the total weight equal. There will obviously be more material in the taller flutes to offset the cut area.fishman wrote:if you take a barrel and flute it it gets less stiff. but if you take two barrels of equal length and equal weight, one skinny, and one larger OD and fluted, the fluted one will be more stiff.Samson1044 wrote: just like there are a lot of people that think fluting a barrel will make it stiffer
Fisherman: Seems like I said essentially the same thing.whiterussian1974 wrote:The purpose of Fluting is to lower weight, increase heat dissipation area and yet retain the stiff girders limiting barrel-flexing. It gives nearly as much stiffness as a .825"OD barrel, by leaving the struts @ .825"OD while the grooves are .625"OD.fishman wrote:if you take a barrel and flute it it gets less stiff. but if you take two barrels of equal length and equal weight, one skinny, and one larger OD and fluted, the fluted one will be more stiff.Samson1044 wrote: just like there are a lot of people that think fluting a barrel will make it stiffer
I was agreeing with you, just not blatantly saying it. *pats back* there ya gowhiterussian1974 wrote:Fisherman: Seems like I said essentially the same thing.
No love for Rus?
I'm just looking for a pat on the back. Fishing for compliments really.
Thank you.fishman wrote:I was agreeing with you, just not blatantly saying it. *pats back* there ya gowhiterussian1974 wrote:Fisherman: Seems like I said essentially the same thing.
No love for Rus?
I'm just looking for a pat on the back. Fishing for compliments really.
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so, as example....................
A penis arrow looping over and then into own tush?Tony M. wrote:So, as example.................... (We need a F--k off, and when you get there, keep fucking off until you've fucked off so far, there's no place left to go, and then F--k off some more, emoticon)