The M91 from Zastava USA is a semi-automatic rifle chambered in 7.62x54R, built for long-range shooting. It works well for sport shooting, hunting, or general-purpose use. 
 

Key Specifications: 

• Caliber: 7.62X54R 
• Action: Semi-Automatic 
• Capacity: 10 Rounds 
• Barrel Length: 24 inches 
• Weight: 11.4 lbs with the POSP scope fitted 
• Finish: Black Anodized 
   

Features: 

• 24-inch hammer-forged chrome-lined barrel for durability and consistent accuracy 
• Adjustable gas flow regulator lets you tune performance for different ammunition or conditions 
• 1:9 twist rate for stable projectile flight at longer ranges 
• Ergonomic stock set designed to reduce fatigue during extended sessions 
• Left-hand threaded muzzle for suppressor or muzzle device attachment 
• Includes two magazines and a POSP 4X24 rifle scope 
   

Usage: 

 
The M91 handles well at the range and in the field. The 7.62x54R cartridge with the 24.5-inch barrel gives solid reach for hunting larger game, and the adjustable gas system means you can dial it in for specific loads. The included POSP scope gets you shooting immediately without additional expense.

Users of the Zastava M91 in 7.62x54R tend to split between appreciation for its accuracy and build, and some frustration with weight and ergonomics.

What Owners Like:

• Accuracy at long range is frequently praised. The 7.62x54R cartridge paired with the POSP scope draws positive comments for precision in both target shooting and hunting.
• Build quality gets consistent marks. Owners describe it as solid and reliable, which tracks with Zastava's general reputation.
• Historical background appeals to collectors and military history enthusiasts, since the M91 has roots in military service.
• Price-to-performance ratio comes up often. Against other precision rifles, it's seen as a reasonable value.

Common Criticisms:

• Weight is the top complaint. At around 11.4 lbs with the scope fitted, some find it tiring over long field use.
• Ergonomics are described as functional but dated compared to modern precision platforms. Stock fit and grip position draw occasional comments.
• The POSP scope, while included, gets mixed reviews. Some owners upgrade the optic for better clarity and adjustment range.
• Aftermarket parts availability is limited. Finding accessories specific to the M91 can be frustrating compared to more common platforms.

Overall the M91 is regarded as a capable, affordable precision rifle with a niche following among collectors and practical shooters who don't mind its military-surplus character.