The best rear bag for a bolt-action hunting rifle is the one that is on the rifle when the shot comes and fits the stock you shoot. Judge it on carry weight, fit under the toe of the stock, fill, how it stays with the rifle and price.
Lighter and cheaper bags exist, and the numbers below show where they beat the Pro 9".
What should you judge a bolt-rifle rear bag on?
Five things, in this order: what it adds to the weight you carry, whether it fits under the toe of your stock, how its fill is set, how it stays with the rifle, and what it costs.
Weight matters because a bag left in the truck gives no support. Fit matters because a hunting stock is a different shape from a competition chassis. Fill matters because it decides how the bag feels under the stock. Attachment matters because a bag in a pack pocket is a bag you dig for.
Where does the Sling Steady Pro 9" fit?
The Pro 9" is a rear shooting rest bag that sits under the stock, for bolt-action, sport and hunting rifles. It measures 9" × 2.5" and weighs 9.5 oz. It ships filled with SteadyFill, with hook-and-loop ports to add or remove fill until it feels right. It has a three-layer build with an abrasion-resistant grip fabric on the contact face, and it is made in the USA. Sling Steady is a veteran-run company, and the bag is patented under US 12,339,095. The price is $89.99, in Black, Sand, Digital Camo or Woodland Camo.
In our testing, shots landed 28% closer to the bullseye with Sling Steady under the stock, and muzzle rise was about 75% lower. It also helps manage recoil.
How does the Pro 9" stay with a bolt-action rifle?
The bag ties into the rear QD point or sling swivel and sits at the toe of the stock. It rides on your sling or attaches directly, and no sling is included with the bag.
If your stock has no rear point, the All-Stock Adapter ($35.95, left or right hand) wraps the stock with a hook-and-loop strap and gives the bag a mounting point. Our post on how the adapter works explains it.
Where do other bags beat the Pro 9"?
Several. These figures are as listed on 4 November 2026 on each maker's page.
Short Action Precision lists its Lightweight Bag at under 5 oz, not including the swivel, for $44.99, 7" × 4.5" × 3", with a tether to the butt stock. MDT lists the Traveler at 8 oz with Spex Lite fill or 1 lb with House Fill, $69.99, with a lanyard that clips to a QD swivel or loops onto a sling. LS Wild lists its 2.5 Ultralight Rear Bag at about 2.5 oz in 500D Cordura, $65.00, with two integrated straps.
All three cost less, and weigh less with the Traveler on Spex Lite. Short Action Precision and MDT do not say whether their weights are filled or empty, so the comparison is not exact. The Pro 9" figure of 9.5 oz is for a bag that ships filled.
Where does a bigger bag make sense?
If you shoot mostly from a bench or a tailgate, weight is not the issue. One retailer lists the Game Changer at 7 lb with standard beads, as of 4 November 2026, and does not say whether that is filled or empty.
A hunting rifle that gets carried is a different job. The bag has to ride along.
What is the order of work on a new rifle?
Choose the Pro 9", then pick a color. Attach it at the rear QD point or sling swivel, or use the adapter if there is none. Set the fill with the ports. Our install guide shows the steps on a sling. For help choosing, write to info@slingsteady.com.
See the Pro 9" for your bolt-action rifle.
Related reading: Building a stable prone position with a rear bag · Hard or soft: setting bag firmness with SteadyFill · What to look for in a lightweight rifle rear bag
Sling Steady is Ready When You Are.