I'm surprised, however, as those numbers look pretty low!
For a generic .311, 125 gr. FMJ, I've got 25.5 gr of 1680 as a published max. in Modern Reloading II...
and Accurate's web site lists the same for the Spear .311, 125 gr. SP.
has any one out there worked up the Hornady bullet?
I would have expected that for a lighter (negligably so?) bullet, I'd see a higher max. load.
I wonder if they're being conservative thinking that some one might use this bullet in a rifle bored for .308 ????
July 28, 2008, 11:35 AM
Maybe that's not a suitable powder. Isn't there only one good powder for 7.62x39? I know you can push a 180g to 1700fps.
July 28, 2008, 11:37 AM
AA1680 is THE powder for 7.62 X 39. The Hornady manual seems to be more conservative than the Lee manual in my limited experience.
July 28, 2008, 11:45 AM
Well, you asked for Hornady manual load data ... every caliber I've checked in a Hornady manual has listed *really* light loadings. For your round, the Lyman 48th Ed lists 23.0gr at 2108fps up to 25.7 at 2412 with 44,600 CUP. Those are with an OAL of 2.2.
That's the second highest pressure for a max load of any powder they list...44,700 is tops for RX7. The other powders are 43,000 to 44,300 and include IMR-4227, N130, IMR-4198 and a boatload (technical term :) for 34.5gr compressed) of H335.
It seems, and I've seen it noted elsewhere, that Hornady just publishes very conservative loadings.
July 28, 2008, 12:02 PM
Well, you asked for Hornady manual load data ...
Yes I did, and I thank you for it..... :)
I'm not complaining, but as stated....just suprised.
Note to self.... I really need to get the Lyman manual... it seems to be THEE Bible of reloading manuals....
July 28, 2008, 12:03 PM
Hear are some loads.
Reader Submitted Reloading Data - Supersonic
July 28, 2008, 07:27 PM
The Lyman 49th Ed is out now ... Midway has it, maybe on sale this month.
It is easily the one I go to the most often.
July 28, 2008, 07:50 PM
I shoot 28.0grs of AA1680 with 125 grn projectiles as per Speer #12
This gets me almost 2700fps in a 26 "bbl and about 2500fps in a 18" tube my start load is higher than the Hornady book's max load
BTW I use small rifle primers
July 29, 2008, 09:00 PM
thanks for the replies....
I loaded up 20 with 25.6 gr. 1680 and CCI 200s
I'm taking another crack at my 312-155 cast bullets w/ 20 gr. 1680 as well (sized to .311, gas checked and pan lubed)
16 gr. of 2400 was all over the place and 15.5gr. wouldn't cycle my Saiga reliably.
July 29, 2008, 11:09 PM
I have some of the same bullet I loaded in 1999. Still havent tried them.
I dont get much range time.
July 29, 2008, 11:16 PM
I went from AA1680 to H4198, and couldn't be happier. I usually use RP small primer brass and CCI small primers. In my ARs, this combination is good for solid MOA performance. Occasionally, I'll drop sub-MOA but rarely will a group open up over 1".
July 29, 2008, 11:44 PM
AA1680 is all I load in my 7.62X39 loads. It also works well in the 30 Carbine.
July 31, 2008, 12:51 AM
anybody try any 130-150 gr bullets.
yes /no /maybe?
July 31, 2008, 01:22 AM
Up to 170g has been done.
July 31, 2008, 08:36 AM
I load the Prvi Partizan 150 Gr. .311 BTSP & & Speer Hot Cor 150 Gr. .311 flat base for my YUGO SKS,They mushroom very nicely in my wet phone book test. I use 24 Gr. RL#7 MV is around 2100 fps.
Nice. Got any mushroom pics? What would be the optimum weight bullet for 100y deer hunting?
July 31, 2008, 07:32 PM
What would be the optimum weight bullet for 100y deer hunting?
125grn bullets are best for deer because the heavier bullets tend to not expand at 7.62x39 speeds because their constructed with much faster cartridges in mind 303brit, 7.7Jap and 7.65x53mm. The exception to this rule are 30-30 bullets if your rifle will shoot them accurately a 170grn FP at 2000fps from an SKS will kill just as well as it were being launched at 2000fps from a Marlin 336
I get upwards of 2300 fps with my 26" 7.62x39 shooting 150grn 30-30 bullets.
July 31, 2008, 08:00 PM
adam I had a pic of my 123 Gr. SP and the 150 Gr SP side by side I dug out of my wet phone books,I assure you that you couldn't tell the difference other than by the mass of the bullet left by the 150 Gr. I was using was the Partizan .311 BTSP. I also called Speer about a month ago and inquired about using the 150 HotCor,he told me that as long as you kept the MV up around 1900 fps that you would get reliable expansion on game such as deer or larger.
According to my ballistic chart based on my MV at the muzzle and load data my 150 Gr. is still moving over 2000 fps at 100 Yds. Which in my current hunting territory would be my longest shot most shot average between 50 and 75 Yds. more than not. I have to look through my photo disc and see if I still have that if not I will do the test again,I need to do some test on my V-MAX load anyways.
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