I saved all the parts just in case I want to go back. The picture below is the 5.7X28 manual AR before I took it apart and built another small cartridge manual upper. I may move back to that round in the future since it was extremely accurate at 50 yards and probably make a good rat and squirrel gun with the little 30gr Barnes varmint Grenade in my manual AR. The real surprise was the little 5.7X28 with 3.5 grains of Unique.

I don't shoot for distance otherwise I could get commercial ammo although recoil again is not my friend at this time so I keep my reloads low. Bullets and brass are easy to get and primers are getting easier. Please keep in mind that you are responsible for your safety so use the loads carefully.Īnother reason I'm doing very reduced loads is for economic reasons - powder can be hard to find at times around here. I've been a bit under the weather but plan to get to the range again next week with some more loads. These loads are probably the closest to 22 magnum velocities but I just had a problem working with the little cases. Reduced loads loads using 5.7X28 FN brass and various powders.īarrel length = 18' and twist rate = 1:14ģ0gr Barnes varmint grenade plus 3.5gr of Unique powderģ0gr Barnes varmint grenade plus 6.5gr of H110 powderģ0gr Barnes varmint grenade plus 6.5gr of W296 powder Notice the really light load of Unique and the velocity compared to the others. below is a short list of loads for the 5.7 FN round. I have also worked with the 5.7X28 FN cartridge in a manual AR-15 but found I really liked the. 223 brass and Unique powderīarrel length length = 20' and twist rate = 1:7ģ0gr Barnes varmint grenade plus 6.0gr of Unique powderģ0gr Barnes varmint grenade plus 6.5gr of Unique powderģ5gr Hornady NTX plus 6.5gr of Unique powderģ5gr Hornady NTX plus 7.0gr of Unique powderģ0gr Barnes varmint grenade plus 8.0gr of Unique powderģ0gr Barnes varmint grenade plus 9.0gr of Unique powderĥ0gr Hornady varmint SP plus 8.0gr of Unique powderĥ5gr Hornady vamint SP plus 7.5gr Unique powder I have a list of the powder charges and bullets below. I would imagine a better choice would be a bolt action but I don't have one in that caliber. 223 AR-15 but I don't know if you can see the charging handle. I don't have a safe full of different rifles so this was just to give myself a little variety in the rounds I could shoot and keep my neck in one place. The Barnes 30gr bullets, Hornady 35gr NTX and 40gr V-max are the ones I prefer and could be used for short range varmint hunting. I actually had really good fun with this since I could shoot bullets from the 30gr Barnes varmint grenades to Hornady 50gr soft points. I was figuring on duplicating 22 magnum velocities since that ammo could not be found here up until recently. I started very light using a manual AR-15 (no gas system) that has a charging handle on the right side. I don't use a progressive press for this and load each cartridge case one at a time and check each when I finish to verify no double loads or empty cases then add the bullet.

I have a bit of a back and neck problem and don't want to contend with much recoil so I started doing very reduced loads using Unique powder in the.

Loading 75 grain 223 subsonic