Hungarian 1970 7.62x54r Steel Core Heavy Ball
All content copyright © 7.62x54r.net
Return to 7.62x54r Ammunition Introduction


This ammunition is attractive due to it's copper washed case.   However the lot used in this evaluation was prone to hang fires probably due to improper storage at some time.  It is one of two types of steel core heavy ball 7.62x54r, both produced by Hungary.

ammo007a.JPG (12357 bytes) ammo007b.JPG (36562 bytes) ammo007c.JPG (56883 bytes)

(Reference number 007)

Case Over all Length Powder
Headstamp Material Coating Water Volume Min. Max. Weight
"21" (country) over "70" (year) steel copper wash 63.7 gr. 3.000" 3.018" 45.5 gr.

 

Bullet
Dia. Length Weight Style Core Tip Color Magnetic? Ballistic
Coefficient
Sectional
Density
.310" 1.474" 182.6 gr. spitzer boat tail steel silver / yellow yes 0.556 0.272

 

Package
20 rounds per paper wrap 440 rounds per spam can
ammo007d.JPG (73965 bytes) ammo007e.JPG (71855 bytes)

 

Measured Muzzle Velocity in Feet per Second (10 shot string)
Rifle M44 M28 M91/30 M91 (Finnish) M91 (Russian)
Low 2406 2424 2518 2480 2415
High 2462 2529 2593 2541 2520
Average 2427 2491 2567 2512 2483
Extreme Spread 56 105 75 61 105
Standard Deviation 18 33 23 22 34
Trajectory and Drop Graph
(click on the thumbnails)
20050112034.jpg (102236 bytes) 20050112035.jpg (102332 bytes) 20050112036.jpg (102312 bytes) 20050112037.jpg (102035 bytes) 20050112038.jpg (101722 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.

20050112034thru38.jpg (84422 bytes)

 

Supplemental Data   When plotting the graph above it was noticed that the performance of the M91/30 surpassed that of the Finnish M91.  This occured with all three types of Hungarian heavy ball evaluated.  The Finnish M91 outperformed the M91/30 with all other types of ammo tested.  To explore this further the three types of Hungarian heavy ball were fired through three more M91/30s.  The 2nd and 3rd rifles, both Soviet M91/30s, outperformed the Finnish M91, while the 4th rifle, a Finnish M91/30, fell slightly behind the Finnish M91.  It is believed that the ammo is most nearly matched to the M91/30 barrel length and slightly larger bores found in the Soviet rifles and achieves maximum performance in these rifles.

Measured Muzzle Velocity in Feet per Second (10 shot string)
Rifle M91/30, 1947 Izhevsk
(same as M91/30 above)
M91/30, 1944 Izhevsk M91/30, 1944 Tula M91/30, 1943 Tikka
Low 2518 2591 2517 2396
High 2593 2628 2552 2497
Average 2567 2607 2532 2443
Extreme Spread 75 37 35 101
Standard Deviation 23 14 16 29
Trajectory and Drop Graph
(click on the thumbnails)
20050112036.jpg (102312 bytes) 20050122029.jpg (102207 bytes) 20050122030.jpg (102132 bytes) 20050122031.jpg (102856 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 4 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.

20050122029thru31.jpg (86580 bytes)

 

Bullet Velocity to 500 yards in Feet per Second

Distance (yds) 0 50 100 150 200 250 300 350 400 450 500
M44
(Soviet)
2427 2351 2276 2203 2131 2060 1991 1922 1856 1791 1728
M28
(Finnish)
2491 2413 2337 2263 2190 2118 2047 1978 1910 1844 1780
M91/30
(1947 Izhevsk)
2567 2488 2411 2335 2261 2188 2116 2046 1976 1908 1842
M91/30
(1944 Izhevsk)
2607 2528 2450 2373 2298 2225 2152 2081 2011 1942 1875
M91/30
(1944 Tula)
2532 2454 2378 2303 2229 2156 2085 2015 1946 1879 1814
M91/30
(1943 Tikka)
2443 2367 2292 2218 2146 2075 2005 1937 2870 1805 1742
M91
(Finnish)
2512 2435 2358 2284 2210 2138 2067 1998 1929 1862 1797
M91
(Russian)
2483 2406 2330 2256 2183 2111 2041 1972 1904 1838 1774

 

Bullet Energy to 500 yards in Foot Pounds

Distance (yds) 0 50 100 150 200 250 300 350 400 450 500
M44
(Soviet)
2393 2246 2105 1972 1845 1724 1611 1501 1399 1303 1214
M28
(Finnish)
2520 2366 2219 2080 1948 1823 1703 1590 1482 1381 1287
M91/30
(1947 Izhevsk)
2677 2516 2362 2216 2077 1945 1819 1700 1587 1479 1378
M91/30
(1944 Izhevsk)
2761 2596 2439 2289 2146 2011 1882 1760 1643 1533 1429
M91/30
(1944 Tula)
2605 2447 2297 2154 2018 1889 1766 1650 1539 1434 1337
M91/30
(1943 Tikka)
2426 2276 2134 1999 1871 1749 1634 1524 1420 1323 1232
M91
(Finnish)
2564 2408 2260 2119 1984 1857 1736 1622 1512 1409 1312
M91
(Russian)
2505 2352 2206 2068 1936 1811 1692 1580 1472 1372 1278

 

Recoil
Rifle M44
(Soviet)
M28
(Finnish)
M91/30
(1947 Izhezsk)
M91/30
(1944 Izhevsk)
M91/30
(1944 Tula)
M91/30
(1943 Tikka)
M91
(Finnish)
M91
(Russian)
Weight
(Pounds)
8.25 lbs 9.75 lbs 8.56 lbs 8.63 lbs 8.69 lbs 9.38 lbs 9.50 lbs 9.38 lbs
Recoil Velocity
(Feet per Second)
10.5 fps 9.1 fps 11.2 fps 11.4 fps 10.9 fps 9.3 fps 9.9 fps 9.5 fps
Recoil Energy
(Foot-Pound)
14.2 ft-lb 12.7 ft-lb 16.8 ft-lb 17.3 ft-lb 16.1 ft-lb 12.7 ft-lb 14.5 ft-lb 13.1 ft-lb


All content copyright © 7.62x54r.net
Return to 7.62x54r Ammunition Introduction