Just because a cartridge has a OAL of something does not mean that you will be able to load to that.... the bullet shape determines that. You may well have a problem- but long sleek bullets with the ogive further from the tip can obviously be loaded longer than round nose bullets. Not real familiar with the Speer 140- but I'm sure it's not a match bullet. If you look at a reloading manual they give a max OAL for each bullet- you can't just use the same info for them all.