Sako 85 zero question

[Bowderdale]

I have a new (6 months old) Sako 85 carbonlight 22-250, aim sport mod and shooting hornday 50 grain Vmax, scope is a Schmidt And bender PM11 (new) sphur one piece mount. Initial set up was fine and zeroed as it should, I always set up at 1” high at 100yrds. As of late I have missed some foxes that wouldn’t normally get away and at 80/100 yard. I took rifle to check zero and it was 4” right 6” high, tracked to zeroed no problem in 2 bullets and 3 splitting the paper at 1” inch high at 100 yards. Off out I went confident ...... 2 misses later, back home to mull over what went wrong.... out next day to zero and surprised to find the first shot 4” right 6” high, second shot 4“ low and 4“ left, shots 3,4,5 all bang on the 1inch high splitting the paper, my head is now hurting , as to what’s going wrong, thoughts on possible causes please.

 

[Stevie/P]

sound to me the scope or mounting system is at fault

 

[Border]

Could it be bedding issues? I have heard of some 85's that don't shoot well until the barrel is changed. Hopefully you don't have one of those. Is the Spuhr available for the 85? Maybe you have mounts for the T3 instead??

 

[Steff]

Could it be bedding issues? I have heard of some 85's that don't shoot well until the barrel is changed. Hopefully you don't have one of those. Is the Spuhr available for the 85? Maybe you have mounts for the T3 instead??

Forgive me, but this is nonsense. The barrel is not the problem but the non-fit-for-purpose recoil lug bedding on the 85.

 

[Border]

Forgive me, but this is nonsense. The barrel is not the problem but the non-fit-for-purpose recoil lug bedding on the 85.

Hence the first sentence.....

 

[Andyquadra]

Are you cleaning the barrel after zeroing? Leaving to much oil in it?

 

[Bowderdale]

Are you cleaning the barrel after zeroing? Leaving to much oil in it?

No I only dry cloth it through, I haven’t changed any normal procedures only thing changing is the zero

 

[Cloudhopper]

Is your moderator tight and aligned?
CH

 

[scotch_egg]

As @Border has asked, tell us more about the scope mount setup.

Have you fitted a picatinny rail?

 

[sir-lamp-alot]

Make sure the action screws are done up tight on the bottom of the rifle I had a problem with mine and this was all it was

 

[rem284]

First check all screws on stock and scope, dont forget the screws that hold the rings on to the optilock base. If possible put the suspect scope on a proven rifle and put a proven scope on suspect rifle. Make sure the barrel is free floating. Clean barrel go to target and check. Leave the
foxes alone until you have sorted it out. They are harder to get once educated

 

[ejg]

Got a picture of the scope/mount set-up. ?
edi

 

[willyroe]

Loose mounts.

 

[DavyG]

I'd be interested to see a pic of the mounting arrangement. You didn't mention what rail you have fitted to the 85...?
DG

 

[Bowderdale]

I'd be interested to see a pic of the mounting arrangement. You didn't mention what rail you have fitted to the 85...?
DG

I fitted a forward extended Britannia picatinny rail which mounts with optilock bases

 

[DavyG]

I fitted a forward extended Britannia picatinny rail which mounts with optilock bases

In my opinion there are too many variables with that arrangement. I’m not a fan of optilocks anyhow, but you have the base which is clamped to the action, the rail which is screwed to the bases, the mount is then clamped onto the rail and finally, the scope is clamped into the rings.
DG

 

[Dunwaters]

Check the scope, check the mounts and action screws, check the scope again.
Send the scope back for a health check, it’s pretty much always the scope.....

 

[Andy RV]

Stock to action screws!

 

[Bowderdale]

Pictures of rail set up

In my opinion there are too many variables with that arrangement. I’m not a fan of optilocks anyhow, but you have the base which is clamped to the action, the rail which is screwed to the bases, the mount is then clamped onto the rail and finally, the scope is clamped into the rings.
DG

 

[Bowderdale]

In my opinion there are too many variables with that arrangement. I’m not a fan of optilocks anyhow, but you have the base which is clamped to the action, the rail which is screwed to the bases, the mount is then clamped onto the rail and finally, the scope is clamped into the rings.
DG

I hear what your saying but with using a rear add on archer, moving the scope forward with a base was difficult on the Sako, however the set up has been fine until recently when it’s started throwing bullets