+P on My Ammo Means... What?

Published on August 6, 2025
Duration: 1:46

+P ammunition signifies rounds with higher pressure, typically around 10% more than standard SAAMI specifications, due to increased powder. It's crucial to verify your firearm is rated for +P to avoid catastrophic failure. While offering more power, the benefits of +P can be diminished in short-barreled firearms where powder may not fully combust.

Quick Summary

The '+P' designation on ammunition means it's loaded to higher pressure, typically about 10% above standard SAAMI specs, due to more powder. Crucially, your firearm must be rated for +P to avoid dangerous pressure spikes, which can cause catastrophic failure and injury. Short barrels may not fully benefit from +P's increased velocity.

Chapters

  1. 00:00Introduction to +P Ammunition
  2. 00:08Defining +P Pressure
  3. 00:19Safety and Firearm Ratings for +P
  4. 00:32Performance Trade-offs of +P Ammo
  5. 01:06Barrel Length Considerations for +P

Frequently Asked Questions

What does the '+P' designation mean on ammunition?

The '+P' designation on ammunition signifies that the rounds are loaded to a higher pressure than standard loads. This typically means they contain more powder, resulting in approximately 10% more pressure compared to standard SAAMI specifications for that caliber.

Is it safe to use +P ammunition in any firearm?

No, it is not safe to use +P ammunition in any firearm. You must ensure your firearm is specifically rated by the manufacturer to handle the higher pressures associated with +P rounds. Using them in an unrated firearm can cause catastrophic failure.

Will +P ammunition always perform better than standard rounds?

+P ammunition offers increased power, but it's not always a superior choice. Factors like bullet design and the firearm's barrel length play a role. In short-barreled firearms, the extra powder in +P rounds may not fully combust, negating potential velocity gains.

What are the risks of using +P ammo in an unrated firearm?

Using +P ammunition in a firearm not rated for it poses significant risks. The excessive pressure can lead to a catastrophic failure, potentially destroying the firearm, causing severe damage, and resulting in serious injury to the shooter or bystanders.

More General Videos You Might Like

More from GUNBROS

View all →