Help identify these two cartridges?

[Parashooter]

Actually, they're both probably .30/40 Krag. The one on the left likely has its projectile pushed into the neck farther than normal, leading you to mistake a measurement on the ogive for its major diameter. Pull the bullet back out and you might find it's closer to .308". The variation in body taper and shoulder form is normal, since in a rimmed design these dimensions are not especially critical as long as not too large for the chamber.

Here's a SAAMI chamber drawing -



And a comparison of fired and unfired .30/40 cases -

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[Kyle M.]

Actually, they're both probably .30/40 Krag. The one on the left likely has its projectile pushed into the neck farther than normal, leading you to mistake a measurement on the ogive for its major diameter. Pull the bullet back out and you might find it's closer to .308". The variation in body taper and shoulder form is normal, since in a rimmed design these dimensions are not especially critical as long as not too large for the chamber.

Here's a SAAMI chamber drawing -

https://www.milsurps.com/attachment....12&cid=1&stc=1

And a comparison of fired and unfired .30/40 cases -

https://www.milsurps.com/attachment....13&cid=1&stc=1

Thanks that would make sense. I can’t believe that in the nearly two years I’ve had these I never noticed that the shorter round had a big crack in the neck. I was able to pull the bullet by hand with very little resistance and the case is empty. I can hear loose powder in the other. I guess these will display nicely with the 1884 & 1886 .45-70 cartridges I found with them.