Eggleston Munitions Polymer Coating - Does It Work?

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Eggleston Munitions Polymer Coating - Does It Work?

For a while now I've been using Eggleston Munitions .309 diameter polymer coated projectiles for my 300BLK subsonic loads. I wanted to find something cheap to reload for plinking subsonics. I had to do some of my own load development to find a good load for my particular gun that would cycle reliability, hold the bolt open on last round, and stay subsonic.

The Eggleston Munitions polymer coated bullets intrigued me and were at a reasonable price. I bought a 100 round bag (in my video I mentioned they only come in 500 rounds which was my mistake. I forgot they have the 100 round sample bags) to try them out. I found a good load that I have been using thus far. I may try a different load combo with a different powder when I run out of my current stuff. My current load is:

COL 1.675"
8.5gr Winchester 296 powder
200gr Eggleston Munitions .309 projectiles.

8" 300BLK barrel
Pistol length gas system
H2 buffer
SilencerCo Saker Suppressor

The claim for the polymer coated bullets is that the rifling won't hit the lead bullet and cause excessive leading. Since I am shooting with a sealed suppressor that can't be cleaned super well I wanted to know, "Does it work?" So, I decided to conduct my own tests to see if the polymer coating holds up. Short answer? Looks like it. At least up to 1000fps which is what I shot at.