Long target bullets can be "interesting" to find data for...
I always start with known data for a weight of bullet either identical or slightly higher then seat .010 off the lands with a minamum charge for that weight of bullet then work up in steps around .5gr
I worked up 190gr Nosler CC .308 bullets in my 300wm target rifle using 208gr Amax data and found it very simmilar.
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Pretty girls make us buy beer, the ugly ones make us drink it.
"Al Bundy"
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..... you won't like me when I'm angry...
.....heck you probably won't like me even when I'm not
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