Use for A1680?

[clearwater]

Lo and behold I found data for 275 Rigby right in my Lyman Manual for cast boolits. Now I can fire form my 7mm Ackley brass and use up this powder while enjoying some practice with pleasant shooting rounds.

[lotech]

I've seen good accuracy results with 1680 in a Ruger bolt-action 7.62x39 using Lyman #314299.

[clearwater]

Well the 1680 worked great fire forming in the 7x57 improved! It is my wife's rifle and at 25 yards it made 1 ragged hole for a dozen shots, then at 200 yards she was hitting the steel chicken more times than not with about a 1 foot hold over. The pressure expanded the brass to nice sharp edges in the Ackley chamber.

135 grain round nose cast, 25.5 grains A1680

[Aunegl]

1680 works in a TC 32-20.

[Bazoo]

I have often wondered about a1680 in both 44 mag and 30-30. I don't have any to use up but have seen it. Thanks for this thread and all the info.

Bazoo

[Shingle]

It is the only powder for 6.8mm SPC with J's as far as im concerned it tops all else for speed with light bullets.

[Zingger]

1680 is my go-to in 7.62x39. Cast or J-Word, prefers J-word for a bit more velocity......

[Texas by God]

I bought a # of 1680 to try in the Blackout. Instead I tried it in 7.62x39 with 150 gr/.311” and at 40 yards accuracy on the first try is superb. This bears more scrutiny.

[sundog]

Works a charm in 7.62x40WT using Barnes data.

[TCLouis]

Bazoo
Buncha 1680 under a 300 grain Hornady coated projie will send it downrange about 1100 fps.
I think it agreed with loads listed in "Castpics" though I developed it separately.
Gonna try it under the 320 Lee if I ever get around to casting up some!

Clearwater
A coworker shared an "AmmoLand" link yesterday and it had 1680 and 357 Mag Lever Action Carbine loads.
I'm thinking Clary was the author.
Sorry I deleted the link.

[Sig556r]

+1 on 7.62x39 light loads, also used on subloads for .277WLV

[SOFMatchstaff]

It is my go to powder for 22 Hornet , 8x33 , 7.62x39 , 300 BO, even the 30 carbine works well with the 110gr Soft pts. .. I've thought about the 5.7x28, but its a bit slow.

[Aunegl]

TC44-14": 325 gr. fp, 22.6 gr. - 1680. Your mileage may vary.

[yeahbub]

It works really well in the .375 Win or similiar sized straight case rounds with medium weight bullets. Accurate 1680 is the perfect powder in the .375 Win with a paper patched Lyman 375249 at near 100% load density. 357 Max with 180's or heavier seems like a god application. Many possibilities.