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Why do you need a polymer coating on a bullet?
What are coated bullets?
How to handload coated bullets?
Why do handloaders use polymer rounds?
Coated bullets are said to offer advantages over traditional lead bullets. The coating prevents leading, reduces or eliminates smoke produced by the waxy lube required on lead bullets, and some designs may require less gunpowder to push them to the same velocity as jacketed bullets.
- What Are Polymer-Coated Bullets?
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- Advantages of Polymer-Coated Bullets
- Disadvantages of Polymer-Coated Bullets
All bullets have some sort of coating or lubricant that makes it easier to fly down the bore of a firearm. Otherwise, the barrel would suffer much more damage and your shot would be less accurate. The idea with polymer-coated bullets is to make a bullet with a cheaper lubricant that is still as accurate. That lubricant is a polymer coating. When yo...
Besides coated, you also have jacketed and plated bullets. Jacketed ammo is what most people are familiar with. You can easily find plenty of different calibers in a full metal jacket. These rounds are often made of lead and “jacketed” with a harder metal around it (typically copper). These jacketed rounds are better than just plain lead cast bulle...
Compared to traditional rounds, polymer-coated ammo has many advantages. For starters, the lubrication is much better than it is with cast or jacketed bullets. That means that there is going to be less friction between the bullet and the bore, and there will be less debris build up in your barrel over time. Plus, the lubrication of the coating also...
The biggest disadvantage to polymer-coated bullets is that the coating will melt if it reaches high velocities. This is why we typically see coated bullets in pistol rounds and not rifle rounds. This melting will obviously cause the bullets to be inaccurate at long ranges. To eliminate this problem, polymer-coated bullets are typically only used in...
Oct 29, 2023 · The polymer coating encapsulates and contains the lead of the bullet, which is a major benefit to handloaders and anyone who is concerned with lead exposure, as it leads to less vaporized lead and debris in the air after each shot. This is of particular benefit to shooters who utilize an indoor range, where there’s no wind to clear the air.
“The coating itself consists of a catalyst which binds a polymeric colorant agent with acetone which is then applied in bulk to raw bullets and baked onto the bullets’ surface at nearly 400 degrees. The coating is a polymer (bonded with metal) and forms an extremely tough new surface for the bullet.
Aug 11, 2021 · The purpose of a polymer coating on a bullet is to create smoother performance and less friction, and having a polymer coating on your bullet can bring benefits both as a shooter and as a hand loader. Compared to lead round nose, there is less fouling in the barrel.
Oct 27, 2022 · October 27th, 2022. Reloading Advice: With Coated Bullets, Adjust Loads Cautiously. Coating bullets with a friction-reducing compound such as Molybdenum Disulfide (Moly) offers potential benefits, including reduced barrel heat, and being able to shoot longer strings of fire between bore cleanings.
Nov 2, 2017 · Popular coated cast lead bullets started a renaissance in bullet design for the home loader. With no lube groove, there is reduced length and increased bearing surface. This article tests the accuracy of non-lube groove bullets in 9 mm, .40 S&W and .45 Auto.
