Re: What is acceptable bullet weight variation?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Barrel Nut</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: tater</div><div class="ubbcode-body">If you have access to an interior ballistics program, you can run the numbers for yourself and see if the variation that could be caused by varying weights of bullets would be acceptable to you. I think if you do this you will see that the weight variations are a very minor factor in the POI equation. Of course if you are shooting LR Comps, and all other variables like runout, charge weight, case capacity, neck tension, etc. are minimized then you would be more likely to notice the difference. In my sorting for normal field use, I sort to three piles by weight, then check dimensions in each pile. Cull bullets with major variances in dimensions/profile first (even if weight is good, use them as foulers), then bullets with major weight differences (again foulers).
my .02
tater </div></div>
I have access to a ballistics program...In fact several of them. You should take your own advice and try them. For the most part they do not even use the bullet wt. in the calculation. They use BC and velocity. You should set up a bullet in the program then copy that bullet using all the same data but just change the bullet weight. For example I can take my 185 grain load and change the bullet weight to 100 grains. As long as the BC and velocity do not change the dope stays the same. Does that mean bullet weight does not matter? I agree with you for practical shooting it does not matter. Even beyond 1000 yards when you are shooting 1 MOA steel targets. But precision shooting is a different game at distance. I've seen too many matches decided by millimeters. Eliminating variability is always good. I am also not sure why everyone thinks that if you weigh bullets you do not have time to shoot. I average about 2500 rounds a year, the amount that I shoot has nothing to do with how long it takes to weigh bullets. </div></div>
Barrel Nut,
I did not say ballistics program, I said INTERIOR BALLISTICS. ie Quickload. This means inside the gun. The weight of the bullet and bearing surface are the factors there. The BC has nothing to do with INTERIOR BALLISTICS.
thanks,
tater