I've had shoulders set back several thousandths with reduced loads.I know above someone stated their shoulders ended up in different places after shooting, that would fall into the what the heck category for me, however just out of curiosity I did measure 15 fired cases from fired from the same barrel and all were exactly in the same place.
Although it does get a bit monotonous to have guys arguing over different shades of grey.
Then there is the problem of uneven case shoulder difference in resizing on rimless bottleneck cartridges. Since the case shoulders stop the case going forward, if one should is a couple of thousandths shorter than the next, even if the bullets were absolutely identical, the bullet loaded into that case will have that couple of thousandths less jump, since it sticks that much further into the throat when the case shoulder hits the chamber
hounddawg said:Nick, I don't think anyone will argue that when changing to a different style bullet with a different ogive will it require that you adjust the seating die to accommodate the new ogive profile. If you change from a Berger 105 Hybrid Target bullet to a Berger 105 VLD Target and yes you will have to re measure and re adjust the seating depth to get the same amount of "jump".
Metal god said:Although 100% correct, I've pointed out on numerous occasions that when using the competition shell holders my shoulders are in the same place from case to case