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Posted: 9/8/2011 6:32:53 PM EDT
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I just rolled my first few rounds tonight. I purposely ordered cheap Winchester 55 grain bullets for my first reloading in anticipation of errors. Out of the 200 received, I noted variances in weight from 54.7 to 55.4. The majority of the rounds weighed in at 54.9 (75 or so) and 55.0 (40 or so). How great of a difference will the variance in weight cause in accuracy? This is of course considering equal weight/lot of brass, exact powder charges to the tenth of a grain, and same seating depth.
You get what you pay for, some of the rounds looked kind of crazy and a couple even lacked a cannalure. Thanks! |
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How great of a difference will the variance in weight cause in accuracy?
It is not uncommon for bullets to vary in weight, even some expensive/accurate bullets will vary quite a bit. Like the others have said, you purchased a rather poor bullet as far as accuracy goes. Weight consistency plays only a small part in what makes a bullet accurate, I doubt these bullets would shoot even if they weighed exactly the same. You know the old saying "Garbage in Garbage Out". |
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Quoted:
I just rolled my first few rounds tonight. I purposely ordered cheap Winchester 55 grain bullets for my first reloading in anticipation of errors. Out of the 200 received, I noted variances in weight from 54.7 to 55.4. The majority of the rounds weighed in at 54.9 (75 or so) and 55.0 (40 or so). How great of a difference will the variance in weight cause in accuracy? This is of course considering equal weight/lot of brass, exact powder charges to the tenth of a grain, and same seating depth. You get what you pay for, some of the rounds looked kind of crazy and a couple even lacked a cannalure. Thanks! Nice to see that Winchester hasn't changed their 55gr FMJs much over the years.  I stopped buying them back in the 90s.
Having said that, for cheap blasting ammo they will be just fine. Pick a seating depth in spec and stick with it. Standing, off hand at 100 yards you won't notice that plus or minus seven tenths of a percent weight variation. |
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Agree, don't worry about batch sorting projectiles by weight till you start shooting for precision and accuracy.
You took the right path when you started reloading. Take the first experiences to learn about your processes. As time goes, you will learn to make improvements which will require better components. For plinking ammo, it won't matter. The first lessons are to keep good notes, read as much as you can, and play it by the books. Later, you may want to read up on the other sites about accuracy and precision loading habits. Here is one or two to wet your whistle. http://riflemansjournal.blogspot.com/2010/02/reloading-bullet-sorting-and.html http://riflemansjournal.blogspot.com/2010/09/reloading-measuring-bullets.html |
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