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  • olderthaniam
    Junior Member
    • Jun 2009
    • 8

    Am I seeing things?

    My buddy and I went shooting a few weeks ago at Cow Mountain (yes we packed out what we packed in (and a bit more)). I brought my new (to me) USP Compact .40 and he took his Sig P220, the eurostyle one with the mag release down by the baseplate. We were shooting with the afternoon sun at our 3:00 and I think I saw his bullets streaking toward the target as I stood at his 7:00. It didn't happen every time but it was a surprise to see that. It looked like a grey streak 10-20 feet long. Kind of awesome.

    I couldn't see the same effect when he shot the .40 cal USP. Do you think the extra velocity of the .40 made the difference?

    (and yes, I know I am a compulsive parenthetical annotater)
  • #2
    CalNRA
    Calguns Addict
    • Apr 2006
    • 8686

    the 45 is slow enough that you could see a slow moving round.

    legend is soft load 45s are easy to spot.
    Originally posted by cvigue
    This is not rocket surgery.

    Comment

    • #3
      JUNGALIST
      Junior Member
      • Aug 2009
      • 80

      Could have been the reflection of the sun or a wannabe "tracer" we'll never know.

      Or maybe the type of round he fired with the barrel, etc.

      Comment

      • #4
        aplinker
        I need a LIFE!!
        • Feb 2007
        • 16762

        It's called bullet trace.

        A google search will get you going.

        Google Map of OLL Dealers

        List of CA-friendly Manufacturers, Dealers, Middlemen, and Magazine rebuild kit dealers
        Click me-->So you're a n00b and you want to build an AR? <--Click me
        This post is based on actual events. Some facts may be altered for dramatic purposes. All posts are pure opinion. All persons, living and dead, are purely coincidental, and should not be construed.

        Comment

        • #5
          edwardm
          Senior Member
          • Oct 2005
          • 1939

          You were probably seeing the 'wake' of the bullet as it went downrange. Mid-flight projectiles have to displace air during travel, and do so rather quickly as you'd imagine. Military sniper-spotters use this effect (generally visible through a spotting scope) to help the shooter dial in the target as-needed.

          I've only seen this with rifle rounds, but in the right conditions (moderate temperature, medium humidity levels), it's painfully obvious when looking downrange through a spotting scope. I guess a handgun bullet wake could be visible in a similar fashion, as it also has to displace air (possibly more due to larger cross-sectional width of the projectile). Never witnessed with my naked eye though. Neat!

          Originally posted by olderthaniam
          My buddy and I went shooting a few weeks ago at Cow Mountain (yes we packed out what we packed in (and a bit more)). I brought my new (to me) USP Compact .40 and he took his Sig P220, the eurostyle one with the mag release down by the baseplate. We were shooting with the afternoon sun at our 3:00 and I think I saw his bullets streaking toward the target as I stood at his 7:00. It didn't happen every time but it was a surprise to see that. It looked like a grey streak 10-20 feet long. Kind of awesome.

          I couldn't see the same effect when he shot the .40 cal USP. Do you think the extra velocity of the .40 made the difference?

          (and yes, I know I am a compulsive parenthetical annotater)

          Comment

          • #6
            Jonathan Doe

            45 Auto round is slow and with the right angle of the sun, you can see it. I have. Also, if you shoot in the rain, sometimes you can see the trajectory of the bullets go through the rain.

            Comment

            • #7
              halifax
              Veteran Member
              • Oct 2005
              • 4440

              Originally posted by topgun7
              45 Auto round is slow and with the right angle of the sun, you can see it. I have...
              Experienced the very same thing many years ago with a 1911. Early AM sun.
              Jim


              sigpic

              Comment

              • #8
                Noxx
                Senior Member
                • Aug 2009
                • 1653

                I have seen this on two occasions while shooting outdoors. Now, I don't know if I'm seeing the projectile or the wake, but as I've only experienced it with .45ACP I would lean towards the former. I imagine that rounds dropping below 800fps could be visible in the right conditions.

                Comment

                • #9
                  Voo
                  Senior Member
                  • Feb 2008
                  • 1702

                  Bullet streaks from pistols and wake from rifle rounds look nothing like each other. When it comes to streaking, you're actually seeing the light reflect off the bullet. With wakes, you're seeing the turbulence caused by the bullet compressing the air as it travels, not the bullet itself.

                  Bullet streaking from a pistol isn't that uncommon with the right angle, light, and bullet velocity. I've stood behind lots of pistols shooters during matches and every so often you can see the projectile streak down towards the target. You tend to see this with certain competitors as they tend to reload their ammo to the lowest minimum velocity allowed by the sport. Combine this with a FMJ bullet, the right lighting, and the lower velocities, it happens every now and that you get a nifty visual.

                  When it comes to rifles, I've never seen the actual projectile (unless it was a tracer round) but what you can spot is the "wake" the bullet causes. It looks nothing like streaks and resembles, imho, a distortion or mirage. I didnt wiki it but i guessing it has to do with the air being hyper compressed since the bullet is moving at such high velocities. Since the air is more dense immediately surrounding the traveling bullet, light refracts differently through it, hence the "matrix" type visual.
                  Last edited by Voo; 09-03-2009, 6:26 AM.
                  Aloha snackbar!

                  Comment

                  • #10
                    cineski
                    Calguns Addict
                    • Nov 2007
                    • 6205

                    You just saw the actual bullet. Wake is usually seen in much higher velocity rounds, not with .45's. I've even seen .45's at the indoor range when looking over the shoulders of other shooters. Pretty cool!

                    Comment

                    • #11
                      gunhohulk
                      Member
                      • Apr 2009
                      • 293

                      Yeah you saw the bullet with the sun kinda reflecting off of it. I have seen them often when i shoot at night with my .45 acp because i illuminate the target with my headlights. It looks like a really fast long copper streak.

                      Comment

                      • #12
                        thempopresense
                        Senior Member
                        • Oct 2008
                        • 1134

                        I was shooting at target masters in milpitas. The lighting in the bays isn't the greatest. The guy on the lane next to me had a mag light shining down range on his target, I could see the rounds going down range, it was really cool.
                        Originally posted by SOCMOB
                        Straight out of 1984 by George Orwell, better read it before it's banned.

                        Comment

                        • #13
                          SJgunguy24
                          I need a LIFE!!
                          • May 2008
                          • 14849

                          Originally posted by topgun7
                          45 Auto round is slow and with the right angle of the sun, you can see it. I have. Also, if you shoot in the rain, sometimes you can see the trajectory of the bullets go through the rain.
                          Yep.
                          To the OP, you ever play baseball. When your dialed in and zoning the ball slows down.
                          A couple of times when I was shooting pistol competitions I could see the round leaving the muzzle and follow them right to the target.
                          It looked like I could reach out and grab them. I wasn't shooting weak loads either. All I shot was factory 124 hydra shocks
                          There are 3 kinds of people in this world.
                          The wise, learn from the mistakes of others.
                          The smart, learn from their own mistakes.
                          The others, well......they just never learn.

                          "Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it, almighty God! I know not what course others may take; but as for me, Give Me Liberty, Or Give Me Death!"
                          Patrick Henry.

                          Comment

                          • #14
                            RAMCHARGER
                            Senior Member
                            • Mar 2005
                            • 997

                            I saw this a few times with .44 specials. I could visualy follow them to the target.

                            Comment

                            • #15
                              Turo
                              Calguns Addict
                              • May 2009
                              • 5066

                              Every once in a while this happens to me watching others shooting trap. If the light is just right you can see the shot for just a split second before it hits the clay.
                              "The tree of liberty must be refreshed from time to time, with the blood of patriots and tyrants. It is its natural manure."
                              -Thomas Jefferson

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