Personally, I don't care for using a can on a rifle and using standard loads. It's hard on the internals of some cans. It's still noisy so what's the point? My son-in-law shoots full power loads through his cans all the time on his hog and coyote hunts.
Note the word "personally" at the start of the sentence. I don't care what other people do as long as it's not pointed at me.
1,000 yard shots are doable with open sites... it's doable with no sites... How repeatable is it? Are you just slinging lead or trying to land the projectile inside of a small, sub moa, circle consistently?
If you're shooting
subsonic rounds through a can at 1000 yards the effect is measurable and significant. It's not rocket science
it's physics. Actually... it kind of is rocket science...
.308, 200 gr Lapua subsonic bullet, Trail Boss Powder (hard to come by these days, or so I'm told), . Primer hole bored 9/64" These days most people say that opening up the primer flash hole is not necessary. That suits me fine. It's a pita to put a case in a collet chuck, bore it, take the case out, rinse, repeat and it makes the case "special".
My subsonic loads average 1,025 fps. Supersonic, at seal level. is 1,100 fps. 1,000 yards, 80 degrees F, sea level, 100 yard zero
Bullet impact relative to LOS
-1,888.1" / -157' / -180.1 MOA / 720 clicks (sounds like a lot but it's only 3 degrees)
Zero mph wind. Windage
41.1 inches right
3.9 MOA
16 clicks
Velocity at impact: 755 fps. Still useful but at somewhere between 200 and 300 yards the bullet starts to tumble. Bye bye accuracy
Time of Flight: 3.451s Lots of time for a little gust, dragonfly, etc to affect the flight
Energy at impact: 253 fpe (foot pounds of energy) 100fpe is considered the minimum to inflict a wound
.308 with 168gr bullet (Berger, SMK, whatever). I don't recall the powder and primer used. Its' a hunting load
Bullet impact relative to LOS
-414.02" / -34.5'' / -39.5 MOA / 158 clicks
Zero mph wind. Windage
11.1 inches right
1.1 MOA
4 clicks
Velocity at impact:1,123 fps. That'll leave a mark...
Time of flight: 1.766s
Energy at impact: 472 fpe (foot pounds of energy)
A .338 300gr SMK or Berger at 1000 yards drops 25 moa (about 12'), hits at 1,763 fps, 2071 fpe and takes 1.347s to arrive.
I will say this in favor of cans and using a "normal" bullet - a few years ago Shawn Carlock showed his .338 Edge with a can that he made on it. He wasn't and didn't sell them. He said that he could shoot the rifle without hearing protection and accuracy was still decent.
