Adjustable height rear bag

[garandman]

Put together this little set up so that I can quickly and easily adjust the height of the rear bag / butt of my bench rest rifle. Wanted something simple fast and easy.

Using a standard rear bag with ears, a small foot print "box" as a base, And Some wedges typically used to get a chainsaw out of a log being cut.

Worked pretty good at our rimfire benchrest match tonite.

 

[Shooter13]

With that aren't you changing the amount of contact that the stock has on the bag? And changing the stability factor? Good idea if it works.

 

[Dusty Stevens]

Gotta check the rules of the game you play

 

[garandman]

Gotta check the rules of the game you play

Sure. We have fairly loose rules in a friendly match. Winner get $8.00. Not competing for national rankings. In the front, I shoot off an Atlas bipod.


But I'm curious....which "game" would have rules against this? I mean.... I'm not shooting F-class where windage and elevation is adjusted by micrometers and joysticks, and the trigger is activated by a cell phone app.....

 

[garandman]

With that aren't you changing the amount of contact that the stock has on the bag? And changing the stability factor? Good idea if it works.

The butt sits in the "ears" but sure, it moves a little. I would personally still like my skill and ability to factor in somewhere. lol Noticed last nite it gives me exactly the amount of elevation needed for an ARA 25 bullseye target at 50 yd. ... about 20 - 24 inches. I won the first match and came in 4th in the second. ( Third place and me had same match score of 245 / 250, same # of x's (13) same first miss, and he won third on the seond miss. We may be a buncha hicks but its pretty competetive..... a line full of Anschutzes, Coopers, Sakos and 1 match grade 10/22. I was shooting my Vudoo.

 

[Dusty Stevens]

Sure. We have fairly loose rules in a friendly match. Winner get $8.00. Not competing for national rankings. In the front, I shoot off an Atlas bipod.


But I'm curious....which "game" would have rules against this? I mean.... I'm not shooting F-class where windage and elevation is adjusted by micrometers and joysticks, and the trigger is activated by a cell phone app.....

Most require leather contact to the bench on rear bags

 

[garandman]

Most require leather contact to the bench on rear bags

Wonder if I could glue leather to the bottom of the black oak box.... as its a leather bag, on an oak wedge and box.

Which "most?" I need specifics. So I can go check the rules. Please. Thank you.

 

[T-shooter]

Have you ever thought about using an adjustable rear monopod?

 

[garandman]

Have you ever thought about using an adjustable rear monopod?
View attachment 1126631

DOn't think it will work with the KRG chassis. I bought it anticipating I might eventually sell it, and get an MPA chassis, where a monopod might work.

But the "ears" of the rear bag give greater stability.

 

[jpx2rk]

Might consider one of these if your matches are just the "friendly" type.
https://www.amazon.com/dp/B07KDXJGX9/?tag=accuratescom-20

 

[JMayo]

Most require leather contact to the bench on rear bags

Humm, I've heard "no mechanical" but not leather to bench. Most I know use (cutting)boards or aluminium (with or without adjustable legs)

(IDK IBS rules ...no one I know needs height assistance)

 

[Dusty Stevens]

Rule 2.11.2 in the nbrsa rule book. As a referee i get this a lot at matches. It must be a bag and that bag must contain sand. Thats the whole point in the donuts being constructed the way they are of leather and sand.

 

[garandman]

@Dusty Stevens ... thanx... that's what I was looking for. We are just a friendly match. They let me shoot an unlimited gun (aftermarket barrel) in a factory gun match last week. I didn't know and they didn't say anything until this weeks match. They still gimme the $8 prize money for winning. I followed up by winning this weeks factory match too. (different gun)

 

[Dusty Stevens]

@Dusty Stevens ... thanx... that's what I was looking for. We are just a friendly match. They let me shoot an unlimited gun (aftermarket barrel) in a factory gun match last week. I dodn't know and they didn't say anything until this weeks match. They still gimme the $8 prize money for winning. I followed up by winning this weeks factory match too. (different gun)

I always like to prepare folks just incase someday you do decide to enter a match and want to use a legal setup from day one so you dont have an abrupt change a week before or at the match

 

[BoydAllen]

View attachment 1126818

Rule 2.11.2 in the nbrsa rule book. As a referee i get this a lot at matches. It must be a bag and that bag must contain sand. Thats the whole point in the donuts being constructed the way they are of leather and sand.

The rule does not say that spacers have to be bags or contain sand. The reason that the Otto Ring gets buy, even though it might be said to slightly contain the bag it supports, if it has a soft bottom, is that multiple bags can be used instead of a single one, and because its construction is as a legal sand bag, it does not have to meet the spacer rule. Spacers can be made of anything as long as they meet the rule. Years ago, I made one of some inch thick 80 durometer neoprene. It was not bouncy, had good traction, and could bend a little if needed. I used it under a long bag that was similar to the current gator for shooting a stock that has a short butt, on a range that is slightly downhill to the target. Dennis Thornbury ran those matches and it was common for Don Neilson to referee. He has always been a real stickler on the rules.

 

[garandman]

"Sticklers for the rules" are why I don't bother with sanctioned matches. When the rules become rules for the sake of rules and more important than the game, I'm out.


YMMV. I'm not judging.

 

[ridgeway]

Tractor Supply sells rubber matt in different thicknesses for cheap. Get some and cut a few out the shape of your bag. Bench shooting...i virtually never add rear bag height. Depends on range. But the rubber works well. Also, keep a few squares of toolbox liner in your box. Ranges like to add plywood to the top of benches and rear bags like to move. Toolbox liner is indispensable IMO.

 

[JFrank]

I believe in structure as well as basic rules.
Problem is someone’s always going to try and manipulate them for an advantage

 

[garandman]

Problem is someone’s always going to try and manipulate them for an advantage

As they should. Otherwise we'd all be shooting black powder smoothbores.

 

[garandman]

Tractor Supply sells rubber matt in different thicknesses for cheap. Get some and cut a few out the shape of your bag. Bench shooting...i virtually never add rear bag height. Depends on range. But the rubber works well. Also, keep a few squares of toolbox liner in your box. Ranges like to add plywood to the top of benches and rear bags like to move. Toolbox liner is indispensable IMO.

I like this idea. Its gives rear elevation change while maintaining the "vertical spacer" rule. Which is why outlawing solid, fixed wedges (that have no adjustment) like I got here is "rules for the sake of rules." Its clinched buttcheeks. Its where a phrase like "Lighten up, Frances" applies.

Shoot....squeezing the ears of the sandbag is an "elevation adjustment." SMH.

I'll stick with my friendly matches. And if someone get some miniscule advantage over me with some innovation, then I just need to learn to shoot better. Or copy their idea.