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i have a rossi 243 with a tasco 3-9×40 i had it bore sighted it was on paper then zeroed then the next 5 shot?

gοt progressively worse іѕ thіѕ thе scope,mounts,whеrе wουld уου ѕtаrt

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5 Responses to “i have a rossi 243 with a tasco 3-9×40 i had it bore sighted it was on paper then zeroed then the next 5 shot?”

  1. drilln says:

    Check your scope mounts, sounds like they are loose.

  2. Dana H says:

    If it’s still a tight group the problem may not be your mount but how you’re adjusting. Hard to tell from your description. You had a tight group at whatever zero you picked? Then it started to go haywire? Or did you make more adjustments? Was that as the barrel was heating up? (barrel tempering maybe if it started ranging higher. . . ) Or did you have a nice tight group that started to just drift around? (mounts, maybe cheap scope).

    As far as where to start, I’d let my barrel cool completely and shoot a 3 shot group from whichever ammo works best so far (and keep using that as someone suggested. ) If that’s a tight group and back to zero, you have your answer. (I have a problem barrel that goes bad as soon as it warms up. I’d still hunt with it as long as I know where that first shot out of a cold clean barrel will go. )
    If that group is all over the place you have to start back at the beginning. Check your mounts, then the scope. I kind of like Dednutz now for mounting rings. (solid, 2 piece rings, well engineered. ) Proper torquing and some locktite into the holes. (gunsmith if not sure)
    Some people like to check their scope by shooting a gp. , dialing 10 clicks right, another gp. , 10 clicks up, a gp. , 10 clicks left, a gp. , then 10 clicks down and hope you’re in the same spot with a good barrel and scope.
    hope that helps

  3. SM says:

    Kurt, from what I see you shot after the bore sight, then to zero, and then a 5 round volley. Ok so you have a so so rifle in a Rossi, Tasco makes a medium quality scope, both of these are my experience and opinion. And you shot between 12 and 15 rounds at a target; the things that make a group travel off target are: 1- the mounts or rings are loose or shifted. 2- you shot fast and heated the barrel up, this will affect accuracy especially in a lower quality firearm. 3- if you have a break over rifle then you can have a loose locking bar that is allowing the barrel to move during the shot. 4- if you have the Wizard in 243 then the mounting plate for the scope rings could be loose. If you have the HBS then the same items apply, as far as I can remember Rossi doesn’t chamber any of their lever guns in 243. I think I only saw 303 and 3030 when I did the show.

    Check your mounts, take your time between shots, make sure to shoot the same lot of ammo when sighting in. Don’t take left overs from three or four boxes to the range and expect to have a easy time zeroing in. Chamber the rifle down on an empty brass and give it a good shake and see if it moves or makes a rattle. Good luck and good shooting.

  4. larry says:

    If this is the Youth Single Shot, it looks to me like the easy-break-apart construction might be all loose, especially that flopsy-mopsy scope mount. If it were mine, I would degrease where appropriate, and reassemble with Shoe Goo, especially in the screw threads. That has always worked for me, to keep things from shifting, and you can still get things apart with modest force if you need to.

  5. lawman780 says:

    I’d start with the mounts, be sure that they are installed correctly. There’s a test that I do with scopes to see if they are holding my zero or not. You can go to walmart and buy a 40 laser sighter. Bore sight your scope with one of these. Don’t make any adjustments for the first 10 rounds, just get them down range. Then put the rifle back into the gun vice with the laser, if that laser is NOT exactly where it was before you fired the shots, change the scope. Just my advice and it’s a quick economic way to check your equipment.

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