Polish 1972 7.62x54r Steel Core Light Ball
All content copyright © 7.62x54r.net
Return to 7.62x54r Ammunition Introduction

This ammuntion was the first large quanity of Polish 7.62x54r imported.

ammo021a.JPG (8752 bytes) ammo021b.JPG (32758 bytes) ammo021c.JPG (59585 bytes)

(Reference number 021)

Case Over all Length Powder
Headstamp Material Coating Water Volume Min. Max. Weight
"21" (country) over "72" (year, inverted) steel copper wash 65.3 gr. 3.005" 3.016" 49.0 gr.

 

Bullet
Dia. Length Weight Style Core Tip Color Magnetic? Ballistic
Coefficient		 Sectional
Density
.310" 1.261" 147.8 gr. spitzer boat tail steel silver yes 0.447 0.220

 

Package
20 rounds per paper wrap 440 rounds per spam can 880 rounds per wooden case
ammo021d.JPG (43736 bytes) ammo021e.JPG (27618 bytes) ammo021g.jpg (27938 bytes)

 

Measured Muzzle Velocity in Feet per Second (10 shot string)
Rifle M44 M28 M91/30 M91 (Finnish) M91 (Russian)
Low 2618 2746 2804 2724 2734
High 2679 2815 2851 2836 2812
Average 2649 2777 2826 2792 2773
Extreme Spread 61 69 47 112 78
Standard Deviation 24 22 18 40 31
Trajectory and Drop Graph
(click on the thumbnails)		 20050312016.jpg (102147 bytes) 20050312017.jpg (102111 bytes) 20050312018.jpg (102051 bytes) 20050312019.jpg (101722 bytes) 20050312020.jpg (101537 bytes)
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.

20050312016thru20.jpg (87413 bytes)

 

Bullet Velocity to 500 yards in Feet per Second
Distance (yds) 0 50 100 150 200 250 300 350 400 450 500
M44 2649 2550 2453 2358 2265 2174 2085 1999 1913 1831 1752
M28 2777 2675 2575 2477 2381 2288 2197 2108 2020 1935 1852
M91/30 2826 2723 2622 2523 2427 2332 2240 2150 2062 1975 1891
M91 (Finnish) 2792 2689 2589 2491 2395 2302 2210 2121 2033 1947 1864
M91 (Russian) 2773 2671 2571 2474 2378 2285 2194 2105 2017 1932 1849

 

Bullet Energy to 500 yards in Foot Pounds
Distance (yds) 0 50 100 150 200 250 300 350 400 450 500
M44 2306 2136 1976 1826 1685 1553 1429 1313 1203 1102 1009
M28 2533 2350 2178 2016 1863 1720 1586 1459 1341 1230 1127
M91/30 2624 2436 2259 2092 1935 1787 1649 1519 1396 1282 1175
M91 (Finnish) 2561 2376 2203 2039 1885 1741 1605 1478 1358 1246 1141
M91 (Russian) 2527 2344 2172 2011 1858 1715 1581 1455 1337 1226 1123

 

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) 10.7 fps 9.5 fps 11.0 fps 9.8 fps 9.9 fps
Recoil Energy (Foot-Pound) 14.7 ft-lb 13.6 ft-lb 16.1 ft-lb 14.2 ft-lb 14.2 ft-lb
All content copyright © 7.62x54r.net
Return to 7.62x54r Ammunition Introduction