F Class TR - Best bipod position

[jsthntn247]

Marksman63 said:
Shot following is practically not possible as NEVER my reticle returns back to aiming point after tracking.

I guess this means your rifle hops from the recoil? I'm shooting the 200 hybrids and I have not found a way to avoid "the hop". Has anyone?

Joe

Yea, shoot a 223

 

[XTR]

Yea, 284 in FTR with a brake.... That's a local whatever you got match.

As for "hop". With out shooter input two things happen when you fire, the rifle torques left and the rifle comes straight back as the bullet accelerates with right spin from the rifling. (Shoot a 535 from 45-70 with a vernier rear if you want to really see the torque). It is pretty much simple force on vector. The energy of the recoil has to be dissipated somewhere, If you are getting hop it is likely because your shoulder is too low on the butt stopping the rearward recoil and the force is lifting the front.

Finishing left as most right handed shooters do is a function of how you manage recoil. I believe I've seen where Jim Crofts once wrote he finishes about one target left. At 1000 that's about where I finish up before I slide the rifle back forward. Under recoil my shoulder gives and the butt moving right, not the bipod hopping left, moves the poa to the left. When I slide the rifle back forward in the bag it's back on target.

I have shot with a hard 2 handed grip shooting 215s and stayed on target all the way thorough the shot.

If you are really concerned with finishing on target try using different positions and hold pressures until you get it where you want it, then work on making it consistent.

 

[Jay Christopherson]

Finishing left as most right handed shooters do is a function of how you manage recoil. I believe I've seen where Jim Crofts once wrote he finishes about one target left. At 1000 that's about where I finish up before I slide the rifle back forward. Under recoil my shoulder gives and the butt moving right, not the bipod hopping left, moves the poa to the left. When I slide the rifle back forward in the bag it's back on target.

I have shot with a hard 2 handed grip shooting 215s and stayed on target all the way thorough the shot.

If you are really concerned with finishing on target try using different positions and hold pressures until you get it where you want it, then work on making it consistent.

Good explanation. I don't worry about where I finish on recoil - I only worry about where my shot impacts on the target. As long as I'm holding the X-ring, the rifle could finish upside down and behind me for all I care... ;-)

 

[Joe R]

XTR said:
As for "hop". With out shooter input two things happen when you fire, the rifle torques left and the rifle comes straight back as the bullet accelerates with right spin from the rifling. (Shoot a 535 from 45-70 with a vernier rear if you want to really see the torque). It is pretty much simple force on vector. The energy of the recoil has to be dissipated somewhere, If you are getting hop it is likely because your shoulder is too low on the butt stopping the rearward recoil and the force is lifting the front

.

XTR,
Thanks for the explanation, makes sense. I really appreciate it.

Kindest regards,

Joe

 

[Marksman63]

Finishing left as most right handed shooters do is a function of how you manage recoil. I believe I've seen where Jim Crofts once wrote he finishes about one target left. At 1000 that's about where I finish up before I slide the rifle back forward. Under recoil my shoulder gives and the butt moving right, not the bipod hopping left, moves the poa to the left. When I slide the rifle back forward in the bag it's back on target.

I have shot with a hard 2 handed grip shooting 215s and stayed on target all the way thorough the shot.

If you are really concerned with finishing on target try using different positions and hold pressures until you get it where you want it, then work on making it consistent.

Good explanation. I don't worry about where I finish on recoil - I only worry about where my shot impacts on the target. As long as I'm holding the X-ring, the rifle could finish upside down and behind me for all I care... ;-)

Yea! I fully agree with you!

 

[mysticplayer]

Finishing left as most right handed shooters do is a function of how you manage recoil. I believe I've seen where Jim Crofts once wrote he finishes about one target left. At 1000 that's about where I finish up before I slide the rifle back forward. Under recoil my shoulder gives and the butt moving right, not the bipod hopping left, moves the poa to the left. When I slide the rifle back forward in the bag it's back on target.

I have shot with a hard 2 handed grip shooting 215s and stayed on target all the way thorough the shot.

If you are really concerned with finishing on target try using different positions and hold pressures until you get it where you want it, then work on making it consistent.

Good explanation. I don't worry about where I finish on recoil - I only worry about where my shot impacts on the target. As long as I'm holding the X-ring, the rifle could finish upside down and behind me for all I care... ;-)

That would sure slow you down for the next shot

Where I saw the most gains was in the ability to load tune for lower vertical at distance. In previous set ups, the bounce/hop was really hard to be consistent and end results on target were also inconsistent. So, by modifying the layout and creating the MPOD, I worked to tame that.

Lead to being able to tune my loads better and that has help improve my scores.

Now I can just focus on wind reading instead of adding rifle control into the "noise".

Jerry

 

[XTR]

Finishing left as most right handed shooters do is a function of how you manage recoil. I believe I've seen where Jim Crofts once wrote he finishes about one target left. At 1000 that's about where I finish up before I slide the rifle back forward. Under recoil my shoulder gives and the butt moving right, not the bipod hopping left, moves the poa to the left. When I slide the rifle back forward in the bag it's back on target.

I have shot with a hard 2 handed grip shooting 215s and stayed on target all the way thorough the shot.

If you are really concerned with finishing on target try using different positions and hold pressures until you get it where you want it, then work on making it consistent.

Good explanation. I don't worry about where I finish on recoil - I only worry about where my shot impacts on the target. As long as I'm holding the X-ring, the rifle could finish upside down and behind me for all I care... ;-)

That would sure slow you down for the next shot

But it would definitely keep your scorer alert

 

[Jay Christopherson]

Finishing left as most right handed shooters do is a function of how you manage recoil. I believe I've seen where Jim Crofts once wrote he finishes about one target left. At 1000 that's about where I finish up before I slide the rifle back forward. Under recoil my shoulder gives and the butt moving right, not the bipod hopping left, moves the poa to the left. When I slide the rifle back forward in the bag it's back on target.

I have shot with a hard 2 handed grip shooting 215s and stayed on target all the way thorough the shot.

If you are really concerned with finishing on target try using different positions and hold pressures until you get it where you want it, then work on making it consistent.

Good explanation. I don't worry about where I finish on recoil - I only worry about where my shot impacts on the target. As long as I'm holding the X-ring, the rifle could finish upside down and behind me for all I care... ;-)

That would sure slow you down for the next shot

Where I saw the most gains was in the ability to load tune for lower vertical at distance. In previous set ups, the bounce/hop was really hard to be consistent and end results on target were also inconsistent. So, by modifying the layout and creating the MPOD, I worked to tame that.

Lead to being able to tune my loads better and that has help improve my scores.

Now I can just focus on wind reading instead of adding rifle control into the "noise".

Jerry

What an awesome video that would be though. Trying to get off 20 record rounds in 22 minutes might be a challenge. ;-)

 

[Lapua40X]

Yea, 284 in FTR with a brake.... That's a local whatever you got match.

Thank you, XTR. I knew there'd be somebody out there who'd understand. When I show up for F-Class with my .284 they look at me kinda funny and I hear "just sign in and pay your fees; we'll find some place to put you". Being a step child isn't fun but having a good rifle to even up the odds makes it all worth it.

 

[CH Luke]

Whether moving the bipod forward reduces hop I think may be largely dependent on the individual shooter and their gun handling technique. However, it will definitely reduce the vertical/horizontal movement in the muzzle caused by set amount of movement at the rear. Bipod position can be viewed as a fulcrum for a lever, meaning the farther forward it is, the more movement it will take at the rear to cause a certain displacement in the muzzle. This might be an advantage as long as the bipod wasn't placed so far forward it caused the shooter to be uncomfortable behind the gun. Determining empirically what works best for you with your setup is usually the best approach, and what you find may well be different than what someone else favors.

Help! This spring when the snow melted and I got myself back on the ground in prone finishing up a load work up for a new bullet I discovered a large amount of horizontal spread in my groups. About 1-1.25 MOA at 200 yards. For reference my vertical is tight - always less than 0.5 MOA tested all the way out to 600 yards. Dropped 32 points (very little wind 95% of the time) expected 10 to 14 - not more than 1-2 points in vertical so this is making me nuts.

Tried every jump under the sun to "tune" it. Analyzed and retaught myself every component of positioning and handling. Never going to shoot from a bench again.

One change I made this winter that I just thought of was I moved my bipod all the way forward (2-3") on my PR&T lowboy F T/R stock. Going to try moving it back an inch at a time just to see if it's possible this could be contributing to the problem.
Sound feasible?

BTW, also having a friend that can shoot take a couple groups for me too.

 

[Ned Ludd]

It may be possible that your natural body position and rifle balance simply doesn't favor having the bipod that much farther forward. If you're absolutely certain the load isn't a contributing factor, then you need to experiment as you described until you find what works best for you.

 

[boltman13]

At the BSWN Tuesday Clinic I was encouraged to move my Sinclair bipod further out toward the muzzle. I am unable to shoot from a very low position and the improvement in stability and tracking was amazing. If I need to adjust the vertical on the bipod I have to break position, but once it is set and I begin firing it stays right on. I do get a slight traverse to the left but it is consistent. I do use fairly firm shoulder pressure and light cheek pressure. I am using 185 gr Hybrids. Now if I could only master the wind.