This late Bulgarian ammo recently come on the market in decent quantities. In the 60 rounds fired for the evaluation there were two noticeably slow primers and one dead primer that did not ignite at all. In spite of this the ballistics are very consistent across all length barrels with the exception of the carbine. It has a ball type powder similar to that found in the Czech ammo of the same year.

Ammunition for this evaluation was provided by "Davis" of Gunboards.com.

(Reference number 036)

Package

20 rounds per paper wrap

Measured Muzzle Velocity in Feet per Second (10 shot string)
Rifle	M44	M28	M91/30	M91 (Finnish)	M91 (Russian)
Low	2583	2694	2746	2743	2721
High	2707	2759	2810	2808	2786
Average	2622	2729	2783	2775	2757
Extreme Spread	124	65	64	65	65
Standard Deviation	36	25	26	24	23
Trajectory and Drop Graph (click on the thumbnails)
Notes on the graphs  The graphs above each represent two sets of data.  The red line is the path of the bullet fired from the rifle with the sights zeroed at 200 yards.   The bullet exits the muzzle at a distance a fraction of an inch below zero inches.   This represents the height of the sight over the centerline of the bore.  The bullet rises above zero in a trajectory that then passes through zero again at 200 yards and continues downward.  The blue line is the the bullet drop in inches for the distance traveled.  This begins at the muzzle at zero inches and decreases with distance not taking sight height or zero distance into account.