308 and identical cartridges - but it surely received’t very likely be proposed because of the powder makers or have force tested data for it. AA1680 will likely be positioned in between AA5744 and CFE BLK in melt away fee.
I made use of load data from Hodgdon and Accurate, but my to start with attempt yielded supersonic velocities. (At my location the pace of sound was about 1,143 fps over the test day.) After decreasing the powder demand, eight of another ten rounds were subsonic.
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The reason there isn't any load data is since it is de facto not an proper propellant for your .308, it is too quick. Certain, you can use Just about any powder and it will go bang - Pink Dot is often used properly for diminished loads inside the .
Just after speaking with Nosler, I feel we identified the cause. The AccuBond's jacket is thicker than most conventional bullets, and also the core isn't pure, gentle direct, making it harder for a taper crimp to just take keep. My conclusion may be the a hundred twenty five-grain AccuBond desires a crimping groove.
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In no way attempt to use smokeless powder being a replacement for black powder or almost every other type accurate 1680 load data of black powder option.
If you are applying far too sluggish of the powder, the bullet will start to out-operate the gas creation. This drops the tension, and additional slows the burning accurate 1680 powder fee of your powder. Till the force wave slams to the bullet, as well as the pressure spikes.
Now arrives The supply of LeverEvolution powder from Hodgdon, and .30-thirty velocities unapproachable up to now are within easy attain of those of us who just take terrific joy in stuffing primers, powders and bullets into 2nd-hand circumstances.
So it was only natural to further fill its pipeline by acquiring and marketing its have Ramshot brand name of propellants in 1998. Western bought Accurate Arms powders in 2005 to mature its small business all the more.
“Valleyfield added a second coating on the powder which makes it secure throughout a wide range of temperatures,” Behr mentioned, and he indicated the two powders are kissing cousins, but LT-30 is a little a lot quicker burning than LT-32. These high-quality-grained, extruded powders conveniently stream through a powder measure to supply exact Accurate 1680 cost weights.
If I needed to consider it, I'd begin with a starting up load for that 180, see how it really works after which it's possible perform up in very smaller increments. When I'd reach acceptable accuracy, that may be my load.