So I've always bumped the shoulder back 2 thou after fire forming my whole life. Now, here I am sitting on 100 pieces (fire formed) of lapua straight 284, accidentally shoulder bumped 8 thou. I don't want to talk about it... 
There is a SLIGHT difference in case capacity, but from your experience, will this result in any appreciable velocity difference next time, or just higher SD? To say, if I tune the load using fire formed brass that is bumped 8 thou, will the tune results be the same as when I bump it 2 thou after this firing?
Was planning on fine tuning the node and doing seating depth tomorrow, then realized my error.
Edit: Did just realize that seating depth is in relation to shoulder bump, so I’ll hold off until next firing on that
UPDATE: They all fired fine. Fine tuned the node and seating depth, and I’ll load 4 thousands longer after bumping 2 thou this time around to equate the same jump to lands. SD of 6.9 over 33 rounds after fine tuning. I’ll take that.

There is a SLIGHT difference in case capacity, but from your experience, will this result in any appreciable velocity difference next time, or just higher SD? To say, if I tune the load using fire formed brass that is bumped 8 thou, will the tune results be the same as when I bump it 2 thou after this firing?
Was planning on fine tuning the node and doing seating depth tomorrow, then realized my error.
Edit: Did just realize that seating depth is in relation to shoulder bump, so I’ll hold off until next firing on that

UPDATE: They all fired fine. Fine tuned the node and seating depth, and I’ll load 4 thousands longer after bumping 2 thou this time around to equate the same jump to lands. SD of 6.9 over 33 rounds after fine tuning. I’ll take that.
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