Posted: 10/25/2014 7:33:06 PM EDT
[#2]
...Continued From Above
- Consistency of Components
This goes hand-in-hand with Manufacturing Process and Equipment, but is also a separate subject. The more consistent the individual components going into that final round, the more consistent - and by extension, accurate - the final product. Brass can vary in weight, volume, wall thickness, flash hole size, concentricity, hardness, etc. Primers and powder can ignite faster, or burn hotter. Bullets can vary in weight, jacket thickness, concentricity, overall length, ogive-to-tip (meplat) length, meplat geometry - which all affect Ballistic Coefficient (B.C. - how "slippery" a bullet is as it flies, larger value is better) and Rotational Axis vs. Center of Gravity, among many other things. So having all your cases the same weight with the same volume and uniform flash holes, along with very accurate and consistent powder charges from the same lot of powder, combined with bullets sorted by weight and ogive-to-meplat length with uniformed meplats and checked for concentricity will - when combined with wise selection of components and proper process on quality equipment - yield the ultimate in accuracy potential.
This is not even a gnat bite on the elephant ass of Interior and Exterior Ballistics. Nor is it a significant treatise on Ammunition Manufacturing Processes, Components, Design, and Equipment. It's just a real quick and dirty peek into the process to help you better understand it. Standard caveats apply - exception to every rule, YMMV, paying for a name, etc. I'd suggest seriously considering getting into reloading. I load XM193 for 20.4 cents per round and Sierra 77 gr. MK for 39.7 cents per round not counting brass cost. Brass adds about 1.2 cents per round if you reload it 7 times. Handloading allows you to experiment to get the absolute best possible performance from every weapon you own for the lowest possible price.
Hope this helps!
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