Home Forums Reloading Varmint Rifles 6mm Max - Just rebranded 6X45 ???

Actually the 6mm version on the 223 case that can use 110-115s, in the AR-15 platform already exists.
Go to Mad Dog Weapons Systems and then go to the forums and look for the 6mm Mongoose. You will find load data and performance listings It is a 6mm TCU or improved 6x45 that has been shortened .050, with the shoulder blown out to 40 degrees and body taper reduced by blowing the body out to give it 31 grans water capacity. It works in a standard AR-15 length and with a standard AR mag, with heavy bullets using H-335/844 poweder, amongst others. Uses Lake City brass, by specific design. A neat concept that addresses many points and it duplicates the 6x45 with lighter bullets but can work well with heavier bullets in the AR mag length, plus is intended to be used with shortened 223 military brass. The 6x45 is a very good cartridge but the Mongoose is an improvement in the search to make the AR-15 platform more useful. The 24 Varmint (recently renamed after two years testing by Varmit Magazine) is one step by MDWS above the Mongoose, based on the 6.8 SPC case shortened and formed to the 24 GPC.

This is what the Mongoose looks like, fire formed with 80s It shoots 3/10ths with a 1-8 barrel 18" long. It will do 3,000 fps with the 80 grain. Shot a cayote at 75 off hand with the 80, it did not fully penetrate, exploded in the yote, DRT. A good thing if livestock is near by.