Bipod causing horizontal stringing?

[Bat Rastard]

Same rifle, load, shooter, and day.

Left target off a rest, and I threw the flier.
Right target was on a bipod.

Any ideas?

 

[TGP]

not seeing any targets

 

[Homerange]

Check action screws.

 

[Bat Rastard]

Pic. Not sure why it didn't load the 1st time.

 

[Coyotefurharvester]

Do a dry fire check, should see the reticle move similar to the target impacts, if it's the bipod.

 

[Bat Rastard]

I will try again tomorrow.
I am going to move the Pic rails (bipod mount) forward.
I will try the dry fire thing too.

 

[TGP]

I've had a problem similar to yours with a cheap Remington rifle with a tuberware stock, the stock was flexing due to the weight of the bipod , shot really good off bags and like crap with a bipod.

 

[J.d. Popkes]

Recoil management

What bipod? Does it have the panning feature?

 

[NZ_Fclass]

All of the above ! There's bipods and there's bipods. I have a hatred of shooting off a Harris. A waste of time for accuracy, but great for varmints , but I always feel that I am performing some balancing act and that the platform is far from stable - as evidenced in the OP. I have 4 or 5 Harris bipods. like wire coathangers, they breed in dark cupboards.
For FTR, I have a Joy Pod. It provides a stable platform, with the rear bag. I don't have to squirm around getting on target. I doesn't have a panning feature and the cant can be adjusted and locked. We have an FPR class in NZ - think FTR with a PRS rifle, and a folding bipod is mandatory - so I have a GRS bipod, spigot mounted, over the barrel. Very stable - and as rear adjustment is allowed, I have an adjustable bag rider, to trim elevation. Again a matter of stability.

 

[shoot4fun]

Same rifle, load, shooter, and day.

Left target off a rest, and I threw the flier.
Right target was on a bipod.

Any ideas?

Loose nut behind the trigger!
I shoot matches on SEB rests and I shoot others off bipods (mostly Atlas CAL and Accutac) and had the same kind of troubles. Simply, the two are the same only in that they are shooting. The gun handling/bench manners are totally different. I think you'll find the answer with some dry firing exercises.

 

[Coyotefurharvester]

May need heavy squeeze on the rear bag if you see the side shifting reticle during dry fire. Get the bipod forward. All free experiments while dry firing.

 

[Homerange]

Do a dry fire check, should see the reticle move similar to the target impacts, if it's the bipod.

Don't discount a faulty scope too.
Dry firing revealed a loose reticule in a old VX1 1-4x20 Leupold that the factory reworked for me free of charge. Pop originally purchased it in the 70's but Leupold still stood by their product.

 

[Homerange]

I have 4 or 5 Harris bipods. like wire coathangers, they breed in dark cupboards.

Oh goody, disposing of any, put my name on one will ya ?

 

[NZ_Fclass]

Oh goody, disposing of any, put my name on one will ya ?

Ill have a word with them.

 

[Doom]

Most likely you are torquing the rifle in the bipod to make POA. on recoil the rifle moves off POA before the bullet leaves the barrel.

 

[Clancy]

I think it’s just because you changed the wheelbase. Move the bipod to the front and I’m almost certain it’ll go away.

 

[gunsandgunsmithing]

Wind can do exactly that

 

[lb-ft]

This is 100% true and proven for me, and 100% repeatable.

Harris or atlas are the only two I use, but I now ALWAYS shoot with my bipod feet on a sandbag, or the earth. No more wood or concrete or car hood without a sandbag in between the bipod feet and the surface. I had unexplained accuracy woes EXACTLY like what you’ve experienced with rest vs bipod. When I switched to always use sandbag under bipod feet, my rest groups matched precisely those with bipod.

Try it. I bet it’s the cure.

 

[Bat Rastard]

Most likely you are torquing the rifle in the bipod to make POA. on recoil the rifle moves off POA before the bullet leaves the barrel.

How do I fix that?

 

[DirtySteve]

If the bipod was mounted on either of those pic. rails, it is no wonder the groups opened up. Try putting your rest back there and the bipod up front and you will see that the rest groups opened up. Having any sort of rest/bipod back that far will magnify any slight movement during shooting.