Quote:
Originally Posted by georgehwbush
just a thought, and i'm sure you already know, but a dome point is not best in high pressure situations, the claim is that a rounded flat point is best, something to do with structural strength and how the load is distributed in the primer cup when the charge goes off. you probably know way more about that than i do.
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I think you are right. Normal FP tip profile is a hemisphere with >0.01" straight shank. For instance a 0.075" diameter tip will have protrusion of 0.075/2+0.02=0.058” with a perfect hemisphere at its top, tangential to the straight shank. With this there is no sharp edges anywhere.
For higher pressure cartridge I would flatten the hemisphere by 0.005” without affecting the tangentiality, and probably would increase the straight shank by a few thous to maintain protrusion. The flattened tip reduces chance of pierced primer.
-TL
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