Thread: Bullet weight sorting

@Dermastor, there is accuracy in projectile weight for sure, but there are other factors which may have more impact...

Simply because you think you've seen some consistency in weight measurements does not mean that is what actually causes the accuracy. It may well be that those projectiles also had a similar bell curve in terms on bearing surface and/or several other criteria...

An old rule of thumb in metrology is to use an instrument with prescision of one decimal place more than what you are trying to measure. So if you want to measure length to a thousands of an inch, you should be using a tenth micrometer for decent results. Same thing applies to weight measurements. You will not get repeatable, accurate measurements weighing to 0.1 grain with a scale that has a prescision of 0.1 grain. Add to that the tendency of strain gauge scales to drift (by up to 0.4grain), and you will start to understand my waste of time comment.

Looking forward to your results, and have fun on the course, TH is well worth listening to.