Brown Bear 7.62x54r 203 gr. SP
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This readily available non-corrosive commercial ammunition is made on former military production lines in Russia.  The military style primer and bullet sealer is evident.

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(Reference number 023)

Case Over all Length Powder
Headstamp Material Coating Water Volume Min. Max. Weight
"logo" over "7.62x54R" steel lacquer 65.8 gr. 2.968" 2.983" 44.0 gr.

 

Bullet
Dia. Length Weight Style Core Tip Color Magnetic? Ballistic
Coefficient		 Sectional
Density
.310" 1.243" 204.1 gr. soft point semi boat tail lead soft point yes 0.333 0.303

 

Package
20 rounds per cardboard box
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Measured Muzzle Velocity in Feet per Second (10 shot string)
Rifle M44 M28 M91/30 M91 (Finnish) M91 (Russian)
Low 2200 2264 2328 2366 2213
High 2258 2366 2398 2421 2327
Average 2222 2312 2352 2389 2257
Extreme Spread 58 102 70 55 114
Standard Deviation 23 32 27 24 38
Trajectory and Drop Graph
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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.

 

Trajectory Comparison Graph
This graph combines the trajectories of the 5 graphs above to compare the performance of the test rifles.
Click on the graph for a large, scalable PDF to zoom in for better detail clarity.  Adobe Reader required.

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Bullet Velocity to 500 yards in Feet per Second
Distance (yds) 0 50 100 150 200 250 300 350 400 450 500
M44 2222 2102 1986 1873 1765 1662 1564 1471 1384 1306 1234
M28 2312 2189 2070 1954 1843 1737 1635 1538 1446 1362 1286
M91/30 2352 2229 2108 1992 1878 1770 1667 1569 1475 1389 1310
M91 (Finnish) 2389 2264 2143 2025 1910 1801 1697 1597 1501 1413 1332
M91 (Russian) 2257 2136 2019 1904 1795 1691 1592 1497 1408 1328 1253

 

Bullet Energy to 500 yards in Foot Pounds
Distance (yds) 0 50 100 150 200 250 300 350 400 450 500
M44 2237 2001 1786 1588 1411 1251 1108 979 868 772 690
M28 2421 2171 1941 1730 1538 1366 1211 1071 947 841 748
M91/30 2506 2249 2013 1797 1598 1419 1259 1115 986 873 777
M91 (Finnish) 2585 2321 2079 1857 1653 1469 1304 1155 1021 904 803
M91 (Russian) 2308 2067 1845 1642 1460 1295 1147 1015 898 798 711

 

Recoil
Rifle M44 (Soviet) M28 (Finnish) M91/30 (Soviet) M91 (Finnish) M91 (Russian)
Weight (Pounds) 8.25 lbs 9.75 lbs 8.56 lbs 9.50 lbs 9.38 lbs
Recoil Velocity (Feet per Second) 10.3 fps 9.1 fps 10.5 fps 9.7 fps 9.3 fps
Recoil Energy (Foot-Pound) 13.8 ft-lb 12.6 ft-lb 14.9 ft-lb 13.9 ft-lb 12.5 ft-lb
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