Otter Creek Labs Polonium Suppressor | Point Of Aim/Point Of Impact

Published on May 16, 2024
Duration: 11:34

This video from RTT: Guns & Gear investigates the Point of Aim/Point of Impact (POI/POA) shift when using the Otter Creek Labs Polonium 5.56 suppressor. The instructor explains factors affecting POI shift, including ammunition consistency and barrel harmonics, and then conducts a live test. The test reveals an approximate 1 to 1.5-inch POI shift at 100 yards with the Polonium suppressor attached, using PMC Bronze .223 ammunition.

Quick Summary

Point of Aim (POA) is where you aim, and Point of Impact (POI) is where the bullet hits. A POI shift means the bullet's impact point deviates from your intended aim point, often caused by factors like adding a suppressor or changing ammunition. In a test with the Otter Creek Polonium suppressor, a 1 to 1.5-inch POI shift was observed at 100 yards.

Chapters

  1. 00:00Introduction to POI Shift
  2. 00:11Understanding Point of Aim vs. Point of Impact
  3. 00:41POI Shift in Optics Testing
  4. 00:88Factors Affecting Rifle POI Shift
  5. 01:02Ammunition and Barrel Harmonics
  6. 01:22Barrel Quality and Weight
  7. 01:46Heat and Vibration Effects
  8. 01:59Free Floating Barrels
  9. 02:46Suppressor Impact on Harmonics
  10. 02:54Polonium Suppressor Specs
  11. 03:05Polonium: Quiet vs. Back Pressure
  12. 03:30Live POI Shift Test Setup
  13. 03:40Test Rifle and Optic
  14. 03:70Ammunition Choice
  15. 04:03First Shots (No Suppressor)
  16. 04:37Analyzing Initial Group
  17. 04:53Second Shots (With Suppressor)
  18. 05:19Analyzing Suppressed Group
  19. 05:41Measuring POI Shift
  20. 06:00Considering Ammo and Barrel Condition
  21. 06:19Environmental Factors
  22. 06:57Conclusion and Summary

Frequently Asked Questions

What is point of aim point of impact shift?

Point of Aim (POA) is where you aim, and Point of Impact (POI) is where the bullet hits. A POI shift means the bullet's impact point deviates from your intended aim point, often caused by factors like adding a suppressor or changing ammunition.

What factors affect point of impact shift on a rifle?

Key factors include ammunition consistency, barrel harmonics (influenced by barrel quality, weight, and free-floating), and the addition of accessories like suppressors which can alter the barrel's natural vibration and heat dissipation.

How much POI shift did the Otter Creek Polonium suppressor cause?

In the test conducted at 100 yards with PMC Bronze .223 ammunition, the Otter Creek Polonium suppressor resulted in an approximate 1 to 1.5-inch point of impact shift.

Should I zero my rifle with or without a suppressor?

If you plan to use your rifle suppressed most of the time, it's generally recommended to zero it with the suppressor attached. This ensures your point of aim consistently matches your point of impact under your most common shooting configuration.

Related News

All News →

More Tactical & Gear Videos You Might Like

More from RTT : Guns & Gear

View all →