Pressure

[impala59]

Found this interesting.........

 

 

 

[Continental Shooter]

It's an intersting reading, and a good test in a protected and safe environment.

 

the problem with pressure is not just that it blows out the barrell, might do so with your hand, eyes or produce other injuries; in a practical test, an overpressured shell (and we're talking 100 bar) would throw the pattern astray giving you less chances to fatally hit the target.

 

I am all for heavy loads if and when required, but let's not overdo

[impala59]

I agree, just found the levels of overload interesting. Personally, I try to load fairly lightly for comfort without compromising pattern/range/lethality. Still seeking the holy grail!

[wymberley]

It's an intersting reading, and a good test in a protected and safe environment.

 

the problem with pressure is not just that it blows out the barrell, might do so with your hand, eyes or produce other injuries; in a practical test, an overpressured shell (and we're talking 100 bar) would throw the pattern astray giving you less chances to fatally hit the target.

 

I am all for heavy loads if and when required, but let's not overdo

I have very little idea and an equal measure of interest what happens inside a shotgun barrel, being more interested in what comes out of it. It appears to me that either we think we need, or the makers believe that is the case, or that they are of the opinion that we do need or that they think that faster equals higher sales, more velocity. Consequently, that's the way we're heading. Additionally, for the obvious reasons, fbre wads are now de rigueur in many locations. Safety-wise with SAAMI and CIP looking after our interests, we have no problem with factory loads in that respect. However, and I believe it'll remain unnoticed until more shooters pattern their guns, Gough Thomas' "crypto balling" is going to become in vogue sooner or later.

 

I would be delighted if I'm proved wrong and am totally way of beam.

[Continental Shooter]

I have very little idea and an equal measure of interest what happens inside a shotgun barrel,

 

That's where i would instead put my attention because, whathever comes out is the fruit of what happens inside.

 

Pressure & speed developing inside the barrel is what determines whether you have a good pattern or not;

 

I would agree though that speed it's only a marketing tool to attract more sales (unless is steel we're talking about), after all 'lightning speed' sounds so much better than 'clear pigeon'

 

i could even see the relative benefits of fast shells in clay shooting, but for game shooting or waterfowling, in this part of the globe , i would prefer slow powders, heavy charges and moderate velocities (especially on those frosty mornings on the shore)

[Guest cookoff013]

i can tell you the first few microseconds are amazing what goes on in a shell.

[Continental Shooter]

i can tell you the first few microseconds are amazing what goes on in a shell.

 

indeed

[wymberley]

 

That's where i would instead put my attention because, whathever comes out is the fruit of what happens inside.

 

Pressure & speed developing inside the barrel is what determines whether you have a good pattern or not;

 

I would agree though that speed it's only a marketing tool to attract more sales (unless is steel we're talking about), after all 'lightning speed' sounds so much better than 'clear pigeon'

 

i could even see the relative benefits of fast shells in clay shooting, but for game shooting or waterfowling, in this part of the globe , i would prefer slow powders, heavy charges and moderate velocities (especially on those frosty mornings on the shore)

Agree entirely, but as laymen what is the only means we have of checking the result. I'm assuming here that the speed is close enough to the advertised figure to make little or no difference down range.

[Guest cookoff013]

speed is only one part of the shell, advertised or not. i can give a lecture in what happens to a shell when it fires. go into silly detail and to the laymen....

 

are they any good? - which is quite a valid question.

 

shotguns are relatively low technology. we force heavy metals through the air at fast speeds... thats it.