How to guarantee same lot of ammo?

[RWT]

I have the “wants” real bad, however I must be maturing in my mid 50’s and instead of buying a new encore barrel or a new $4K thermal or build a 22 CM I plan on purchasing 3K rounds of ammo for practice.

I have purchased 1K rounds before and were delivered in 5 different lots of the same ammo.
Is there a method to insure at least 1K is in a single lot?
Once I am sighted in I don’t want to make any changes. I intend to shoot out a barrel.

Ammo will be PSA AAC 6.5 CM 140 blacktip and PSA AAC 556 75 blacktip.

These both shoot well in my primary 6.5 and my trainer Tikka 223.


What is the secret sauce to obtaining as many rounds as possible of the same lot?

 

[Macintosh]

Assume you are ordering? I have In the past called and spoken to a genuine person, asked them, and they instructed me to place the order with a note and follow up with them after order placed, and they made sure I got all same lot. Obviously that depends on where you order from.