P.O.I.with a laser

Discussion in 'Trapshooting Forum - Americantrapshooter.com' started by rrisum, Dec 18, 2017.

  1. rrisum

    rrisum Mega Poster

    Please check my math . I live in Wisconsin. My trap club closes down for the winter. Bought a new trap gun for the 2018 season and am working on getting my stock and rib set for P.O.I. I will be using a pattern board later to select my choke tubes- For P.O.I. my math numbers are these ? At the 16 yard line I break most of my target at 20 yard out? With a 30 inch shot pattern? So if I put a laser shell in and go out in my back yard. set a target up at 36 yards. Aim at the center it will determine my point of impact? 50-50 will be right on - 60-40 Three inches high - 70-30 six inches high - 80-20- nine inches high? hope this will save the neighborhood and give me a jump start to the season. thanks Ron
     
  2. N1H1

    N1H1 Mega Poster Founding Member

    Ron, it depends a lot on the type and quality of your laser. They are (maybe) OK if they are muzzle-mounted, but still you can't count on them 100%. You can get close, but still you have to verify it with the pattern board. It sounds like you are using a chamber-located laser and there are too many things to go wrong with that to trust it much at all. Again, the pattern board will be necessary to be sure.

    You don't have 30" pattern. You can only count on less than that. IM is a good place to start for singles.

    Without going into percentages, you can start with "a little high" to "somewhat high" and see how they break when you are shooting as you have learned to do. It's best for us to just know where our gun shoots in "inches above POA" and not try to translate that into any other system. What's the point? We know it shoots X inches high; what's more to say?

    You are at least on the right track and if you know where it shoots you will be ahead of 9 in 10 of your competitors when you take the field.

    N1H1

    Here's my result with a high-end muzzle mounted laser.

    I was working alone so I had to make a red line, then go back to check it and sometimes move over and raise it.

    On this gun it wasn't much good, saying it shot pretty high when in fact it shot mostly flat.

    [​IMG]

    On this one it was a lot better. It even predicted a slight right-side bias.

    [​IMG]

    And on this one the laser said the under barrel shot higher than the top, but they shoot in the same place:

    [​IMG]

    That's why you have to check your laser result with the shooting POI.
     
  3. wpt

    wpt Forum Leader Founding Member Forum Leader

    In theory yes, but nothing like the real thing ... My gun shoots 100% high (15 inches ) at 40/45 yards, I don't measure it I walk it off ... Do not pay attention to any holes in the pattern, shells are like snow flakes, no two of them are alike ... WPT ... (YAC) ...
     
  4. oldphart

    oldphart Mega Poster Founding Member

    I use a laser in the muzzle set it at home to where my other shotguns show the dot on a chart, then go to the club and shoot straight aways making the final ( just small and sometimes non at all) adjustments until I am smoking targets. I don't use the Pattern Board.
    Sometimes it is a rib adjustment and at other times it is a comb adjustment. If I make any adjustments for handicap it is a washer/washers under the comb. For doubles the settings are mainly the same as for singles. This works for me.
     
    cl3, wpt and Ken Cerney like this.
  5. rrisum

    rrisum Mega Poster

    Thanks for your information. It is like getting a new bike for Christmas and not being able to ride it till the snow melt. It will at least get me out and shouldering my new shotgun - I did use my shell lase on my field gun and it was vary close so I do trust it as a starting point at least and I will definitely using a pattern board for final adjustment . Thanks again for your info Ron
     
  6. Ken Cerney

    Ken Cerney HOF Muscoda Gun Club Past Wisconsin Director Founding Member HOF Muscoda Gun Club

    I picked up my Kolar on my way to Tenn. on vacation and shooting. I used my barrel laser to set it like my 3200. Shot a 96 first time out with the Kolar.
     
    wpt likes this.
  7. wpt

    wpt Forum Leader Founding Member Forum Leader

    So, I head out to the garage, I know I got a barrel Laser in there someplace ... I found 3 sets of barrel weights, box of glow worm sights to help with shooting with one eye, 6 recoil pads, 6 pitch wedges, two soft combs ( don't know where or why I got them ) 31 and 1/2 flats of Remington Nitro's (1 1/8- 7 1/2's -Handicap), another bore gauge, two brand new in the box barrel bore snakes, a shoulder holster I have been looking for for ever, a Gold plating set up, 4 new pairs of batting gloves in the packages, but you think I could find my Bore Laser ..? No such luck, but lets see what tomorrow brings, maybe more surprises ... Its starting to look a lot like Christmas and I haven't bought anything yet ... Ken, you come out this way we got shells Buddy ... WPT ... (YAC) ...
     
  8. Ken Cerney

    Ken Cerney HOF Muscoda Gun Club Past Wisconsin Director Founding Member HOF Muscoda Gun Club

    Bill I don't know if I will make it visit my brother in Mesa this year or not. Time will tell. If I do I will let you know. Merry Christmas
     
  9. Johnson

    Johnson Active Member

    Would the laser P. O. I. change if you modified the pitch?

    mut.jpg
     
  10. dr.longshot

    dr.longshot Grudge Match Champion Founding Member Forum Leader Grudge Match Champion

    IRRSUM: test your laser with just the Bbl off your gun mounted on a Sand Bad and rotate the laser in the Bbl and see if it stays in place and does not Rotate.
    The Muzzle mounted are the WORST to use.

    Use your sight Picture w/Complete gun on a sand bag and site it at 35 Yards, this will get you in the Ballpark w/o wasting shells and you can do it in your backyard w/o disturbing neighbors,

    Then make your trip to a 35 yard Pattern Board using a 40" Cardboard w/ a 3'inch circle, Bead at bottom edge of circle

    Gary Bryant.....................................................Dr.longshot
     
  11. langer

    langer Well-Known Member

    So which is the best? Conflicted much?
     
  12. paracongo308

    paracongo308 Member Founding Member

    The best is the one engineered to show exact poi, and that's measuring at the exit of the barrel. I designed and made his unit 20 some years ago that fits into the choke area then by adjusting a 90 degree internal drive that makes 3 hardened steel ball bearing telescope into the choke forcing cone area. When the balls which are 120 degrees apart come in contact with the cone angle it pulls the gauge tight against the front of barrel. It works well enough that John Allem of Allems gun craft made me a offer for it after several demonstration at his trap range. A laser that fits into the barrel chamber will read a barrel shooting low if it's bent to shoot high. IMG_0506.JPG