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Very Hot Topic (More than 25 Replies) bench rest recommendations (Read 30874 times)
joeb33050
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Re: bench rest recommendations
Reply #15 - Mar 6th, 2010 at 8:40am
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Just a suggestion,  If anybody goes to that area of Florida, take your own water supply. I do believe that there is a bunch of halutionigentics in the water down there.

Clearly, you're a funny guy. Not a great speller, but a funny guy. I'm very amused. Here we have a guy asking about rests, and you, the funny guy, babbling about expensive and heavy reats. Others join in.  Opinions abound. I presented my opinions. You made funny. Here's the question for you, Mr. Funny. Do you have or know of any data that compares accuracy with different rests? Do you back up your funny with data, or are you just an unsupported blathering funny guy?  Tell us, make us laugh.
joe b.
  
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joeb33050
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Re: bench rest recommendations
Reply #16 - Mar 6th, 2010 at 10:36am
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Here's a picture of my Hoppe's rest that I used in 1983 at Coors, coming in 17th with a borrowed 38-30 Stevens 44. Is there anything funny about this?
joe b.
  
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joeb33050
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Re: bench rest recommendations
Reply #17 - Mar 6th, 2010 at 10:42am
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joeb33050 wrote on Mar 6th, 2010 at 10:36am:
Here's a picture of my Hoppe's rest that I used in 1983 at Coors, coming in 17th with a borrowed 28-30 Stevens 44. Is there anything funny about this?
joe b.

with picture. Funny!
  
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joeb33050
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Re: bench rest recommendations
Reply #18 - Mar 6th, 2010 at 10:44am
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This with a bag too big to fit on the Hoppe's top, on a bit of plywood bolted to the Hoppe's top. I use double sided tape to hold bags on the rest, it makes a big, though hilarious, difference.
joe b.
  
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joeb33050
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Re: bench rest recommendations
Reply #19 - Mar 6th, 2010 at 10:48am
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And without the bag, set for the muzzle clamp. I've used any number of front rests, trying to find the best one for me. This Hoppes rest with the plywood and bags is the best so far, in that big forends and muzzle clamp and "normal" rifles fit. Just my humerous attempt to help the questioner out.
joe b.
  
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westerner
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Re: bench rest recommendations
Reply #20 - Mar 6th, 2010 at 1:26pm
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Joe, Jack Benny would be proud of you for being so thrifty.  I used to use a Hoppes rest. It worked okay when resting a barrel on it. Then when the kids left home I acquired some rifles with big forestocks. The Hoppies rest would rock up with the recoil. Since I was wearing thin with the color anyway I made my own rifle rest. I didnt spend a dime on it. I stole all the material from work. In fact I made it at work. I used an old compound rest for a cross slide. I didnt buy that either. My homemade rest weighs a ton. 
Now as far as POI moving when moving the slide. Nope it does not change. I have shot a bunch of 50/50 BR targets and matches with my rest. I used the rest to shoot a 1242 - 43 C a few weeks ago. Also I've lost track of how many 250s Ive shot off that rest. 


Joe. 

  

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Re: bench rest recommendations
Reply #21 - Mar 7th, 2010 at 1:59pm
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Joe, if your silence means you give up, thats a first.  It could be my home made not a penny spent rest just blew your doors off and you dont have an answer.  You're getting soft Joe.   Grin Grin Grin Grin Grin

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« Last Edit: Mar 7th, 2010 at 2:43pm by westerner »  

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joeb33050
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Re: bench rest recommendations
Reply #22 - Mar 7th, 2010 at 3:04pm
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I'm stumped by the lack of change in the zero as the windage on the mount changes. With any rest, forend in the front bag, moving the windage a few inches moves the zero or POI relative to the aiming point a bit-enough to be a bother.
This effect has been common with my guns for many years, is frequently mentioned by other shooters, and is easily reproducible.
The only methods I've found to make this go away is to have the front rest top easily rotate, or use a muzzle clamp. 
Some time ago I wrote the following, from UPDATES in the book.
7.3 THE WANDERING ZERO PROBLEM

When shooting from the bench, the group center moves relative to the aiming point as I go from dot to dot.
The targets I'm talking about are 24" X 24" pieces of paper with sets of dots spaced ~ 4" apart, so a set might be, from the left edge of the paper, at 4", 8", 12" 16" and 20". Sets might be spaced 4" apart in eight.
My impression is that generally the group center moves in the direction the gun is moved. If the rifle is moved left to shoot at a dot to the left of the last one, the group center will move to the left. This is merely an impression, not any kind of rule. Sometimes the group center moves up or down when the gun is aimed at another target.
I'd like to know why this happens, and how to cure it.
I have no guns with "bench rest" 3" wide forends.
I use a Hoppes front rest with a Stoney Point Universal Front Bag, (4.75" L X
2.5" H X 2" W), and a Protektor rear bag. The front bag is attached to the Hoppes rest with double-sided tape and the Velcro holder things. The front rest is free to turn left and right, the top piece is free to rotate on the shaft. Everything else is locked down. Coarse elevation adjustments are made on the Hoppes front rest; fine elevation adjustments are made by sliding the gun forward and backward.
Clearly, windage adjustments are made by moving the rear bag left and right. I put baby powder on both front and rear rests frequently, to eliminate friction
  
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joeb33050
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Re: bench rest recommendations
Reply #23 - Mar 7th, 2010 at 3:07pm
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and stickiness.
I have considered getting one of the very expensive bench rests with the precision windage and elevation adjustments, but so far have been able to control myself. First, the windage adjustable front rest, it seems to me, puts "different" forces on the forend as it is adjusted right and left. Torques the forend. Second, I can shoot small groups with the rests described above, consistently shooting under 1" five-shot 100 yard groups with rifles capable of that, so neither my rests nor my procedure is grossly wanting. I think.
I took my question to some forums, and got a variety of responses. This response let me know that my experience is not unique/I may not be nuts:
"It's a common problem when shooting at multiple bull targets. That is one thing that makes shooting a 250 on the 100 yard ASSRA bench target more of a challenge then one would think it should be. I always suspected it had something to do with the position of the rifle on the sandbags but it could also have something to do with how the rifle is held from the slightly different positions. It also could be that wind conditions change as the target is being shot. I have been shooting single shots a long time and I don't know for sure. Maybe some of the others who are more expert then I at rest shooting can give you the answer. I would like to hear from those that shoot "free recoil" to see if that helps."
The more helpful of the suggestions:
"…after each shot, move the rifle back and forward in your bags. This will settle the rifle in the bags the same each time. I move the rifle forward and aft about three time each time, just before I get ready fire."
"…slide the rifle firmly in the bags to reposition when moving to a new target. After pushing down on the rifle when sliding it in the bags after aiming at the new target; confirm the rifle is sitting squarely on the bullseye without any body pressure on the rifle.
…Rule number one is to ensure the rifle is sitting in the sandbags poin
  
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joeb33050
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Re: bench rest recommendations
Reply #24 - Mar 7th, 2010 at 3:10pm
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pointing perfectly at the new target's bullseye before I assume the firing position. And that the position is stabilized by walking the rifle in the bags to ensure it is sitting perfectly before you assume your bench shooting position.
…the next best rule is to ensure you pull straight back on the trigger to prevent any side torque from slight pressure from pulling on the side of the trigger…
…If you don't walk the rifle into the bags it will be following the same path established from the recoil from shooting the previous targets; and you can get the rifle recoiling slightly off center until it re-establishes a realignment of the sandbags on subsequent recoils."
These mean to me that after shooting one group, re-set the rests and "mash" the gun into the bags to get it settled in and aimed at the next dot. This rather than looking through the scope and moving the rear bag to get aimed at the next dot. A new beginning, a new set up, for each dot shot at.

From Fred Husher
During some experiments I made several years ago I saw the same issue and set about to figure out what was happening. 
To counter any effects I might bring to the party I used a rifle rest that allowed motion on the rifle to only go along the long axis of the gun.  A gas damper was used to absorb the recoil and bring the rifle back to battery.  A cable based remote trigger that pulled symmetrically on each side of the rifle's trigger and moved as part of the rifle assy removed any user inducible errors with respect to the trigger operation.  Change in lateral angle occurred using a Heym joint linked screw feed slide while the elevation was done on the front support post.  This setup was home made and originally used in a long set of experiments for characterizing the interior bolt motion of the M16.  I digress a bit, but it was a fine platform with which to do these experiments.  Linear bearings assured that only a single axis of motion could be supported.  All was made of aluminum and attac
  
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joeb33050
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Re: bench rest recommendations
Reply #25 - Mar 7th, 2010 at 3:14pm
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made of aluminum and attached to a concrete stand at the range with a 3-point mount tensioned.   
I found that there was only a very minor effect observed over shooting with bags in a center target condition, but it did shift as I moved away from that point using bags vs. the machine rest.  Of course any side wind effects would induce their own effects of displacement, but for this discussion it is not the issue at hand.  The rest allows me to change the recoil damper force so that I can mimic wearing a T-shirt vs. a winter jacket.  The effects seen by the clothing thickness generally only affecting the vertical stringing.  I generally shot early mornings when the air was still while I fought off the biting bugs that attack in S. FL. when you present a static target.   
All said and done, what I found was that the shift in angle between the butt end of the rifle and the shooters shoulder changed with respect to the front bag.  As the angle increased the recoil no longer had a straight-line effect and the gun would pull just a hair.  In other words, you as the absorbing load do not absorb energy in all directions to the same degree, whereas the machine rest always kept the recoil forces in-line with the absorbing load.  This occurred even with 22 rimfire.
The whole article is attached. 
I'm baffled by your lack of the problem, and would really want to know why.
joe b. 

  
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joeb33050
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Re: bench rest recommendations
Reply #26 - Mar 15th, 2010 at 7:27am
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Westerner, if your silence means you give up, thats a first.  It could be my home modified not many pennies spent rest just blew your doors off and you dont have an answer.  You're getting soft Westerner.
joe b.
  
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Re: bench rest recommendations
Reply #27 - Mar 15th, 2010 at 8:18am
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Joe, the checks on the table in your pics remind me of a scene in Caddy Shack.  Good job Grin

Dave
  
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Re: bench rest recommendations
Reply #28 - Mar 15th, 2010 at 3:02pm
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Joe, the checks on the table in your pics remind me of a scene in Caddy Shack.  Good job Grin

Dave


Thanks Dave!   
Chuck Bordman gave me that shooting table. It needs a coat of paint. I have about four gallons of gray paint Chuck gave me. I set it up on Pope And Talbot timberland. 
I made the breachseater and the cleaning rod and the pipe clamp stand thingy that holds my spotting scope and powder measure and OH rest. I use the pipe clamp in tha shop for wood projects too. 
Yes I'm as cheap or cheaper than Joe.B. The rosewood blank that was used to make the stock for that Ballard was given to me by the late Bob Vail. Well I traded a Walnut blank that came from a tree that was given to me in 1976. And so it go's on and on....... Grin.

  Joe. 

  

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Re: bench rest recommendations
Reply #29 - Mar 15th, 2010 at 3:07pm
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joeb33050 wrote on Mar 15th, 2010 at 7:27am:
Westerner, if your silence means you give up, thats a first.  It could be my home modified not many pennies spent rest just blew your doors off and you dont have an answer.  You're getting soft Westerner.
joe b.


Yes Joe, you've worn me down and I give up. You win!  Wink

You should try a  windage rest though.  Even if you have to make one yourself. You might like it.

         Joe.  Smiley
  

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