5 Simple Statements About accurate 1680 load data Explained

5 Simple Statements About accurate 1680 load data Explained

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I utilised load data from Hodgdon and Accurate, but my initially try yielded supersonic velocities. (At my area the speed of sound was about 1,143 fps within the test day.) Immediately after minimizing the powder charge, 8 of the next ten rounds were subsonic.

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Ordinarily, I would concur.  On the other hand, I am driving specifically for SBR performance, and 1680 might give that where by other powders would not.  I used to be just thinking if any individual had chrono'd any 223 loads with it from an SBR.

Shorten cartridge duration for all those Publications, and also the mouth of the situation hangs in excess of the ogive curve from the bullet. Couple rifles will feed the ammunition.

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I was trying some new loads just last 7 days. I haven't got my notes handy, but I remember good results as far as precision with 1680.

There are a number of opinions about what works With this thread but When you've got enough time means (reloading) you have got to look for a round that works to suit your needs and you will depend on to execute In the sector.

I took no Unique pains Placing these loads together. The only prep get the job done I did just before loading was sizing the circumstances, tumbling them and chamfering their necks. That's it. Fired from the MPW carbine, the 6 Accurate 1680 supersonic handloads developed an average ten-shot team size of three.thirty inches at one hundred yards. Which is like two dismal groups a result of The lack to taper-crimp Nosler bullets.

Not one of the primers in Lehigh Defense brass ended up crimped, but all of them during accurate 1680 powder the Federal brass had been crimped. The RCBS Primer Pocket Swaging Software will proper this, but taking care of The problem is really a time-consuming affair. Having said that, you may have only to get it done at the time.

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WARNING: Technical data and knowledge contained herein are intended to offer information centered on the restricted encounter of people beneath certain conditions and conditions. They do not depth the complete training, strategies, tactics and safety safety measures which can be absolutely needed to effectively carry on very similar activity. All complex data Within this publication, specifically for handloading, replicate the constrained experience of individuals applying distinct applications, merchandise, machines and elements beneath certain problems and circumstances not essentially noted while in the posting and more than which the Countrywide Rifle Affiliation (NRA) has no Manage.

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If I planned to consider it, I might begin with a setting up load to the one hundred eighty, see how it really works after which perhaps operate up in extremely small Accurate 1680 increments. When I'd reach acceptable precision, that would be my load.