Thread: Trying something, Eric Cortina method of load development

Originally Posted by dannyb

40 was the amount of loaded rounds I checked in the rifle chamber at home (after my mate made the comment about some being hard to chamber) where I felt resistance before the bolt was all the way closed, I'm confident they would all chamber just they require a bit of effort to do so (as stated my mate chambered and shot them successfully), Are you saying that I can use the chamber to bump the shoulder back ? Some where not as bad as others but I would have thought that forcing the bolt down to bump the shoulder back would still not result in a round that chambers smoothly (ie:with just the smallest amount of resistance).
I still feel this is not a good idea as bumping the shoulder back after seating the projectile would move the projectile in relation to the lands ?
Anyone else got any thoughts on this before I pull 40 rounds and go through all the effort of salvaging the powder, depriming, resizing, re primimg, recharging and then re seating ?

1) Because Ackley rounds dont stretch we want to keep them tight and not size them down each firing so as to extend case life. 2) What I find is that different brands of brass, number of times fired etc causes different spring back of sized cases so it is normal to get a few tight ones. I leave my die permanently set and dont check it for each lot of cases. This means I can end up with a few tight ones sometimes.
If they are all run through the gun pre hunting that seems to fix them as it is normally just the neck junction that is tight.