An issue on tracking in the bags.

N

nonliberal

Guest
I went to the 100 yard target with a level and a black marker and made a vertical line about 18" long. I can have the bags and rest set and notice that when I set the dot on the bottom of thevertical line and slide the gun back, it always tracks to the right as it goes up. I pulled with both my left hand then my right hand to make sure it wasnt me pulling it off.

So I put a laser on it to see that the bag was perfectly square to the rest, and the rest was square to the target. It took a minor adjustment but the barreled action is squared perfectly with the stock.

I have it narrowed down to the rear bag (protekor bumble bee with cordura bunny ears). If I cock the bag counter clockwise in relation to the gun it tracks perfectly up and down the vertical line I made.

The problem is it only works for about 2-3 shots and the stock straights out the bag naturaly under recoil.

I let some sand out of the ears which helped a little but its still not right.

Anyone have any experience with this? Whats the best fix? Its an HBR gun so its not real wide at the bottom and does have some drop to it.

Any help would be appreciated.
 
To have a flat reference surface, mount an inverted barrel vise (Davidson style, finger tight) so that it is level before you pull the rifle back, and then pull back as many times as it takes to get the problem to show up. When it does, carefully see if the bottom (on top) of the inverted barrel vise is still level. if it is not the shape of the stock may be twisted.
 
It may be that the bottom of the forend is not truely flat and/or square to the plane of the bbl.
 
Non,
There aren't a lot of HBR guys that frequent this forum,hell there aren't a lot of HBR guys that frequent the score Nationals. I know some guys that shoot HBR and they tell me tracking is unimportant in a HBR gun. Heavy recoil ,low power scopes and six different aiming points kinda negate any superior tracking advantages. An honest gun a death grip and a handle on conditions seem to rule the roost ! Oh yeah,smoking a pipe between relays seems to help !
Joel
 
Turn the front rest

Turn it clockwise a few degrees and watch the movement to and fro....then turn it twice the degrees counterclockwise and view the movement. I don't claim knowledge of the geometry in play but I do claim that it's a no never minder. By that I mean if you find and fix this "problem" your scores won't improve as a result.
 
OK so basicly it seems to be a non issue with an HBR gun. I guess its just one of those things that didnt look just right so it bothered me. I always here "attention to detail is the name of the game", but I guess it needs to be the right details. ;)

I've been at this a while but I am just now really getting serious about it and the paper is starting to show it. So forgive me for what will seem like alot of silly questions. I have a friend that got me started and he fields most of my dumb questions but sometimes I don't want to seem like a 4 year old with a hundred questions a day and drive him crazy.

Thanks.
 
I have played with this problem a lot and it drove me crazy thinking that something was wrong with my equipment. Then I realized it mostly happened on some benches and not on others so much. So I put a level on some of the benchtops I was having the problem at and sure enough, they weren't flat or perfectly level. I also noticed that even on the unlevel benches, it helped to get my stock absolutely perpendicular to the front bag and the pedestal parallel to the target.
 
When I was in Tony school, he said to always check squareness of the rear bag by looking at where the ears are sewed to the bag, not the bottom of the bag. Ears are frequently sewed to the bag at a slight angle.
 
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