all gun manufactures are doing now days is trying to reinvent the wheel
Since you don't like to see change in the gun industry (judging from this comment) lets talk about this wheel.
The wheel has been around for thousands of years but look at what we drive on today it certainly isn't the original wheel we had thousands of years ago. Look at what formula 1 drives on. Look at what Baja racers drive on.
If people weren't constantly trying to "reinvent the wheel" we would all still be throwing spears and rubbing sticks together to make fire.
So be glad that gun and ammo manufaturers are trying to reinvent the wheel. Casue if they weren't we wouldn't even have smokeless powder.