H&N Excite Prometheus Pellets, .177 Cal, 6 Grains, Domed, Lead-Free, 250ct

Nothing, unfortunatly.

They need to be redesgined.

I can't say these pellets are good or accurate. They don't even fit properly into my Sig magazine because of being slightly oversized. Compared to other pellets I use, they are extremely inaccurate and deviate all over the place.

The super hard tip made these pellets very good at penetrating solid objects like steel sheet metal, comparable to gamo "lethal" pellets but at a much lower price.

The plastic sabot needs to be made with a harder material like the gamo lethal pellets so it does not leave plastic shavings in the air gun barrel.

These pellets will dirty your air gun barrel fast! The plastic sabot is so soft that when it catches an air guns rifling it shaves away the plastic leaving long thin strands of it throughout the barrel. After 20 shots, I ran a nylon barrel brush through my rifle and pulled out what looked like a clump of black hair from a bathtub drain.

Not much.

Of the 5 lead free pellets I've tried, these were the worst, producing groups of 3" average. I do all my testing at a measured 25 yds. from a rest. I shoot on calm, warm days and I take my time. I control my breathing and use good trigger and sighting discipline. These pellets might perform acceptably in a pistol, or low powered rifle, but they are only good for plinking in my opinion.

Higher velocity in my under powered co2 guns. Appear to be uniform insize.

More in tin

Test them in your gun and make sure they don't drop out, It could be bad for springers.