Detailed Notes on accurate 1680 load data
Detailed Notes on accurate 1680 load data
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308 and comparable cartridges - but it surely gained’t most likely be recommended through the powder makers or have pressure analyzed data for it. AA1680 is often placed among AA5744 and CFE BLK in burn up fee.
Neck stress can vary in between parts of brass. One of the best ways I've observed to unravel this issue would be to dimensions brass without the expander ball within the die. It is possible to substitute a more compact-caliber expander ball, or you are able to de-key in a distinct move by using a universal de-primer.
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Ordinarily, I'd agree. However, I'm driving especially for SBR performance, and 1680 may possibly give that in which other powders wouldn't. I was just wondering if anyone had chrono'd any 223 loads with it from an SBR.
Shorten cartridge size for anyone Publications, along with the mouth of the case hangs over the ogive curve from the bullet. Couple rifles will feed the ammunition.
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I was striving some new loads just past week. I haven't got my notes helpful, but I remember great benefits in terms of precision with 1680.
The set-out problem is caused by insufficient neck rigidity and attempting to taper-crimp instances that are not all the exact same duration. If you're going to taper-crimp, trimming circumstances to the identical length will manage 50 percent the problem.
I exploit this powder as it is a “ball” powder, not a “adhere”. I utilize it in my Dillon XL650. After the powder measure is ready, Each individual toss is accurate inside of 0.1 grains. It provides wonderfully reliable ammunition.
That's fairly crappy for just a 24 inch barrel, but because it's an incredibly fast powder, I'd guess that It will be significantly less impacted by a brief barrel than slower powders like 748, 2230, Varget, or BL-C2. Exact same story for Accurate 5744. Incredibly quick powder that Accurate 1680 provides some respectable velocities in 223. I had been asking yourself if everyone has done this experiment and has results? Otherwise, and if an individual has an SBR they'd like to test, I have bought a pound of 1680 on my reloading bench at the moment....
Excellent concept. Hadn't considered that. My Speer guide only lists loads to get a fourteen inch contender, upon assessment. Data for the ten inch contender will be more attention-grabbing.
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“Valleyfield extra a 2nd coating to your powder which makes it secure throughout a wide array of temperatures,” Behr said, and he indicated The 2 powders are kissing cousins, but LT-thirty Accurate 1680 is a little bit quicker burning than LT-32. These good-grained, extruded powders simply move via a powder evaluate to produce exact demand weights.
These sets normally include things like the two higher and lessen receivers, intended to be certain compatibility With all accurate 1680 load data the 9mm caliber and present high-top quality development for responsible overall performance.