A bipod holds up the front of the rifle and a rear bag holds up the back, so in the shooting bag vs bipod question they do different jobs and you can use both. If the butt of the rifle is already on a rest or well supported, a bipod may be enough, and a rear bag earns its place when the back of the rifle would otherwise be held up by your hand or sit on the ground.
What a bipod supports
A bipod attaches to the fore-end and holds the front of the rifle off the ground. It sets the height at the muzzle end and gives the rifle two feet to stand on. It does nothing for the back of the rifle.
What a rear bag supports
A rear bag sits under the toe of the stock. It supports the butt so that your hand does not have to hold it up. With the support hand free, you can squeeze the bag to raise the stock and ease off to lower it.
That is technique, not a test result. WieBad describes the same method on its Loop Rear Bag page: squeeze to raise, ease off to settle.
What top match shooters do
A Precision Rifle Blog survey of the top 200 PRS shooters was published in October 2024. The article says top shooters prefer a bipod plus a rear bag whenever a stage allows. It gives no usage numbers for that preference, and neither do we. That is a match survey, not a hunting one.
When a bipod alone may be enough
A bipod alone may do the job when the butt is already supported, for example at a bench where a rest holds the stock, or when you are shooting with your shoulder well set and no need to adjust. It also saves a piece of gear.
When a rear bag adds something
In the field the butt of the rifle often has nothing under it. Prone on uneven ground, the bipod holds the front and your hand holds the back. A bag at the toe of the stock takes the hand out of that job. Our post on building a stable prone position covers the setup.
A bag that rides on the sling is there when you drop into position, with no search through the pack.
What each one costs you to carry
A bipod stays on the rifle, so it is carried with it. A rear bag in a pack pocket is one more item to find, and one more reason to leave it behind on a short walk. Sling Steady's bag is a rear shooting rest bag that sits under the stock. It rides on your sling or attaches directly, so it travels with the rifle and not in the pack.
In our testing, shots landed 28% closer to the bullseye with Sling Steady under the stock. In a separate .308 test, 3 shots each way, muzzle rise was about 75% lower with the bag than resting on a fist. It also helps manage recoil.
Some bags in this category weigh less or cost less than ours. As listed on 4 Nov 2026, Short Action Precision lists its Lightweight Bag at $44.99 and under 5 oz, not including the swivel, without saying whether that is filled or empty. LS Wild lists its Mini Ultralight Rear Bag at about 1.4 oz and $39.99. Compare how a bag is carried as well as what it weighs.
Shooting bag vs bipod: what we could not find
We looked for a measured test of a rear bag against a bipod alone and did not find one as of 4 Nov 2026. Only forum anecdotes turned up. So we do not claim a number for either setup, and we describe what each one holds up.
Can a bipod and a rear bag work together on a hunting rifle?
Yes. A rifle bipod and rear bag split the work in the field the same way they do at the range: the bipod holds the fore-end and the bag sits under the toe of the stock. On a hunting rifle the question is carry. The bipod is already on the rifle, and a rear bag only helps if it is there when you drop into position.
With a QD at the bottom of the sling, Sling Steady clips straight onto the sling, and a sling with a QD on each side uses the Y-Clip Sling Adapter. Without a sling, the bag attaches directly to the rifle's stud or QD point, or to the All-Stock Adapter on a rifle without a QD sling stud. Either way it walks in with the rifle and is under the stock when the bipod legs go down.
For longer shots in open country, see rear support for long shots on elk and mule deer, and for what to judge a bag on, the best rear bag for a bolt-action hunting rifle.
Using both
Pick the size by rifle. Bolt-action, sport and hunting rifles take the Pro 9" (9" × 2.5", 9.5 oz), and AR-platform rifles take the Sport 7" (7" × 2.5", 6.3 oz Black, 6.8 oz other colors). Either one costs $89.99 and ships filled with SteadyFill. Sling Steady is a veteran-run company, and the bags are made in the USA.
To add rear support to your bipod: Pro 9" · Sport 7"
Related reading: Building a stable prone position with a rear bag · Range day: using a rear squeeze bag on the bench and prone · Prone hunting: getting steady when the shot comes fast · Rear bag or shooting sticks for hunting
Sling Steady is Ready When You Are.