Originally Posted by
severnsider
I hope I'm not derailing this thread, but I do have a related question which concerns N140 and 77gr SMK. Both Vihtavuori and Sierra (Edition 5) suggest a range of N140 from 21.0 to 24.7gr and 22.3 to 24.5gr respectively. Both also suggest OAL of 2.26". Now, I'm not particularly interested in maximum loads, but there's no way that I can squeeze 24gr of N140 into a .223 case with a 77gr SMK and get an OAL of 2.26". The most I can get in is 21.5gr for that OAL, which is right at the bottom of the weights suggested by both the powder and bullet manufacturers.
Have I missed the blindingly-obvious somewhere along the line?
compressed load? Chris is a beast of a man, he probably can get an odd extra grain in here or there 
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