Really have to wonder why, in this day with all the tech we have to work with, in God's name don't they get rid of such a useless measure of anything. There's absolutely no linear correlation between CUP and PSI so why bother? Limits are limits, all pressure related, so WTH can copper units do that psi can't explain simpler? Just a ramble - sorry.
CUP's
- Thread starter sbtennex
- Start date
beretta boy
CGN Ultra frequent flyer
- Location
- Orillia, Ontario
Oh, when they get a "Round2IT" - they'll get them all done in PSI.
It's only been a hundred years or so and we still get "Drams Equivalent"
on Shotgun Shells ! Like most of the shotgun world is reloading in
equivalency to drams of black powder ... right !
It's only been a hundred years or so and we still get "Drams Equivalent"
on Shotgun Shells ! Like most of the shotgun world is reloading in
equivalency to drams of black powder ... right !
BattleRife
CGN Ultra frequent flyer
- Location
- of No Fixed Address
The shooting industry is extremely traditional, bordering on hostile towards modern technologies.
Expressing shotshell power in feet-per-second is very "newfangled", having become common (though still not the norm) only in the last five years. The use of PSI instead of CUP only started about 20 years ago.
In a world where even in Texas you can see speed limit signs in Kilometers per Hour, it says something about the gun business that avoirdupois units are regarded as suspiciously new!
Expressing shotshell power in feet-per-second is very "newfangled", having become common (though still not the norm) only in the last five years. The use of PSI instead of CUP only started about 20 years ago.
In a world where even in Texas you can see speed limit signs in Kilometers per Hour, it says something about the gun business that avoirdupois units are regarded as suspiciously new!
BattleRife
CGN Ultra frequent flyer
- Location
- of No Fixed Address
I have seen this stated before, and it just isn't true. Electrical resistance strain gauges cost about five bucks apiece and can be operated from a laptop with only a couple thousand dollars worth of hardware/software. They have been around since before World War II and are very easy to use. It wouldn't take very many batches of calibrated copper crusher cylinders to equal the cost of a very nice (and non-consumable) strain-gauge setup. Again, it appears that the backwards mindset of the companies themselves is the only obstacle.
