difference in length with various 9mm hp's (pics)

[kielbasavw]

i came across a deal, and included was a box of mix matched ammo, and i noticed that they are all noticeably different in length, i haven't noticed this with any of the .45 i own. any insight on this topic? i had a very knowledgeable friend tell me you will typically see higher grain ammo loaded "longer". im just curious what the deal is, thats all.

From left to right: Speer Gold Dot +P, Black Talon, Winchester Silver Tip, PMC Eldorado StarFire

[M_E_]

Well, do you know what bullet weigh of each round is? That would give us something to work with. Otherwise, just shoot them.

[daiofalltrades]

I'm betting the higher the grain of the bullet, the farther it sticks out and that some will be more reliable in any particular gun than others.

The Hirtinberger 100 grain truncated cone 9mm load won't chamber in an UZI for example.

It's a good idea to test a round in your weapon by running 100+ through it before counting on it to function in a pickle.

True?