Heaviest grain commercial 7.62x39 round???

Sun_and_Steel_77

Sun_and_Steel_77

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...planning on using my CZ-858 with folding stock on the trail [A.T.V., backpacking etc.] for black bear defense. Anyone know of the absolute heaviest grained bullet available in 7.62x39???. It would have to be softpoint and brand or price is not an issue. I am not a re-loader so I am interested in purchasing the whole round as opposed to just the projectile. Where to buy???. Hope someone can help :redface: and thanks for viewing my post.

Cheers,
Mad Mikey.
 
I am not a semi-expert, however since using heavier bullets tend to increase pressures, what kind of effect would prolonged use of heavier bullets have on the semi-system of this rifle?
 
Its a .311 bullet so in theory any .303 would go down the bore. The problem gets where there is too much bullet to feed reliably through the mag and still have enough powder behind for it to be of any use and cycle the action!
 
Headdamage that 154 gr. Wolf is what I'll go with. Did you purchase this ammo from pro line recently?? I'm in B.C. but thats not an issue I'll give these guys a call. Thx. again for replys.
Mad Mikey.
 
david doyle said:
why would they increase pressure?
Click to expand...

because it takes more time to travel down the bore, and therefore there is more build up of pressure, unless you reduce the powder charge.

Can someone more technically inclined explain this?:)
 
Proutfoo said:
because it takes more time to travel down the bore, and therefore there is more build up of pressure, unless you reduce the powder charge.

Can someone more technically inclined explain this?:)
Click to expand...

Usually when you use a heavier bullet in any caliber a slower buning powder is used to prevent pressures from getting too high.
 
I've personally seen what a 7.62x39 soft point will do on several bears right out to 150 meters. It penetrates all the way through except on shoulder shots, which it breaks with aplomb.
I would think that if you're going to use it for bear defence, all of the shooting you would do would be at much closer ranges.
Although the chances of a bear actually attacking are very slim, there can be a very real threat under certain conditions.
The 858 wouldn't be my first choice as a bear gun, unless you are useing short magazines. Otherwise it's just to darned awkward to carry on a horse and gets tangled in a tent.
If you have a 12 gauge shotgun, take it instead, loaded with 00 Buck or slugs. At ranges up to 50 meters the 00 Buck is devastating on anything, Up to 100+ meters the slug is a mauler. Of course, you are only talking of defensive ranges of 15 meters or less,
If you're takeing the 858 out for some plinking along the way, by all means don't let me talk you out of it, have fun.
If you're seriously worried about bear threats, practice on moveing targets first.
A great place to practice is a creek with FAST MOVEING WATER. A floating target, such as a fairly large chunk of wood 20 cm in daimeter and 20 cm long is about the perfect size. If you can hit that at under 15 meters in a fast current, bobbing in rapids, you'll be OK. Agrressive bears are unpredictable and can either be standing still or moveing extremely fast. You really need your wits about you when a bear charges. bearhunter
 
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Thanks silver back, kinda like switching a 30-06 loaded with 150 grain bullet to a 220 load, does'nt mean your going to have more pressure.

You can find load data for a 150 grain 7.62x39 load. heavier bullet, slower powder, less velocity.
 
Silverback said:
Usually when you use a heavier bullet in any caliber a slower buning powder is used to prevent pressures from getting too high.
Click to expand...


Not a slower powder usually, just a lesser charge. For example a 180 gr. bullet in a 303 British may require 39 gr. of a perticular powder to reach maximum velocity, but with a 150 gr. bullet, you may require 43 gr. to reach maximum velocity. The lighter bullet will have a higher muzzel velocity with about the same amount of pressure. A lighter bullet is easier to start moving due to its lesser inertia, therefor heavier bullets have less powder to keep pressures down. By the way, I used to hand load for my SKS and I used 160 gr. cast bullets from a Lee mold. The gun used to cycle beautifully. Never had any FTF. Fairly accurate as well. I was thinking about taking it caribou hunting, but never got around to it.
 
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Heavier 7.62x39

So is the bottom line there is no 7.62x39 with a bullet weight heavier than about 125 gr, non corrosive, SP or other hunting style bullets available in Canada? What did you end up doing Mickey?
 
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