5 Simple Statements About accurate 1680 load data Explained
5 Simple Statements About accurate 1680 load data Explained
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I utilized load data from Hodgdon and Accurate, but my to start with try yielded supersonic velocities. (At my location the pace of seem was about one,143 fps around the exam date.) Immediately after lowering the powder cost, 8 of the following 10 rounds were subsonic.
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By Layne Simpson There was a time when groups measuring a few to four inches at a hundred yards from a lever-motion rifle of tube-feed, uncovered-hammer style and design ended up fairly acceptable. Those people days are long absent. Present day ammunition is far more accurate, mainly because present-day bullets tend to be more accurate.
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My considering is the fact that because it's kind of slower burning it will superior fill the situation vs. the likes of H-one hundred ten/296 and 11FS, and It really is possible to spike pressures and/or get odd pressure excursions as a consequence of very low situation fill could be reduced.
There are a variety of comments about what operates in this thread but In case you have time means (reloading) you have got to discover a round that actually works for you personally and you can depend on to complete In the field.
I took no Accurate 1680 Unique pains Placing these loads collectively. The one prep operate I did ahead of loading was sizing the situations, tumbling them and chamfering their necks. That's it. Fired from your MPW carbine, the six supersonic handloads developed a median 10-shot group dimension of 3.30 inches at a hundred yards. Which is such as two dismal groups brought on by the inability to taper-crimp Nosler bullets.
Which is very crappy to get a 24 inch barrel, but as it's an exceptionally quick powder, I'd guess that it would be a lot less affected by a short barrel than slower powders like 748, 2230, Varget, or BL-C2. Identical Tale for Accurate 5744. Incredibly speedy powder that provides some first rate velocities accurate 1680 powder in 223. I was thinking if any person has finished this experiment and has benefits? Otherwise, and when an individual has an SBR they'd like to check, I have got a pound of 1680 on my reloading bench right this moment....
The recovered diameter (RD) was measured in inches across the facial area with the bullet in two places and signifies Accurate 1680 the common of People two measurements. The recovered weight (RW) is the weight in grains of the most important portion of the bullet. Tests was carried out at an elevation of 2,200 ft above sea degree.
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Heading lighter doesn't constantly mean finding shorter. Such as, some 35-grain bullets are literally extended than their 40-grain cousins. A solution utilized by quite a few shooters is to load very long rather than use the journal.
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