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Old November 23, 2001, 03:36 AM   #1
Conformer
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7.62x39 vs. .30-30

Whats the major ballistic differances.
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Old November 23, 2001, 09:12 AM   #2
Ewok_Guy
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7.62x39 has the velocity edge. It keeps a good amount of energy past the 200-300 yard mark, compared to the 30-30. 30-30 usually has a few hundred more ft. lbs. at muzzle.
Either round would and does work fine on deer out to 150 yards when loaded with the proper bullet. Just expect more bullet drop from the 30-30.
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Old November 23, 2001, 01:21 PM   #3
labgrade
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Major "limitation" of the .30-30 is the flat-tipped bullets normally associated with a tubular magazine - causes a bit of a drag re ballistic coefficient, which affects trajectories.

In all practicalities, they're the same ballistically - maybe with a bit of an edge to the .30-30 on the heavier bullets & initial muzzle velocity & energy.

I've known a folk or two using tube-fed .30-30 levers who would load their first round with (a known-to-print) spitzer bullet. It gives a good (better) trajectory for that first (perhaps longer) shot & afterwards, they'd adjust accordingly for the remainder w/flat-nosed.

Zip for personal experience on either ('cept for a few 100 X39s downrange), but the X39 round usually "maxes out" at w/about a 147 grain bullet, while the .30-30 goes to (standard factory loadings of) 170. Can be a fairly major difference on game regards the sectional density.
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Old November 23, 2001, 02:11 PM   #4
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I concure with the above comments.
I would also like to point out that Cor-bon offers a hot 150gr JSP that puts it over the top.
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Old November 25, 2001, 01:48 AM   #5
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The Russian round has little velocity advantage.

Cartridges of the World shows:

7.62 Russian (military) has a bullet weight of 122 grains at 2329 ft/sec.

.30-30 has factory bullet weights of 150 grains at 2410 ft/sec; or a 170 grains at 2220 ft/sec.

Semi-auto rifles for the 7.62 must be loaded with rounds loaded to specific pressure levels. If not, the action won't work or the rifle gets beat silly. In a bolt rifle, one could probably do something a bit hotter.

Off hand, I'd say the .30-30 has the horsepower advatage. The 7.62 has the advantage in shots fired per minute. Within usable distances, I'd stick with the .30-30 in terms of factory loads.
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Old November 25, 2001, 03:07 AM   #6
Conformer
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I have found some new info in the Guns and ammo buyers guide it shows that some in 7.62x39mm are more powerful but some in .30-30 are more powerful.
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Old November 25, 2001, 10:26 AM   #7
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I should have listed this earlier... I'm just lazy like that.

This is from Cor-bon's site:

7.62x39 Sporting 150gr JSP
2300 fps
1762 ft/lbs
20" barrel

Not too incredibly hot velocity-wise, but the energy levels are quite impressive.
If I were to use this caliber for hunting, I would seriously consider this.
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Last edited by Snowdog; November 25, 2001 at 12:26 PM.
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Old November 25, 2001, 11:43 AM   #8
Ewok_Guy
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I've taken big deer with my Ak using Remington 125 gr. soft points.
Theres still a good 1300 ft/lbs of energy at 100 yards.
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Old November 25, 2001, 02:16 PM   #9
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Not ballistically speaking, but 7.62x39 is a whole heck of a lot cheaper to practice with. Even if you reload, you are hard pressed to reload for less than bulk 7.62x39 goes for.

I have not used either for deer hunting, but I would think that at standard ranges either would work well. My Dad's last deer was taken with a 30-30 at just over 100 yards, worked just fine.

The 30-30 probably has more options in game loads, but the popularity of the russian round is increasing.
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