New to reloading need a mentor

[Evan]

Do you have an adjustable gas block?

ARs are harder than bolt guns to reload for because your load is going to effect how the gun gasses and ejects. You may want to start low and increase the load only until the gun functions and ejects nicely and stop there.

1000yards with an 18" 308 gas gun will be a challenge. You're definitely subsonic out there, meaning you will want to find a bullet that handles the transonic transition well. 600 is good to go; no worries there.

I second Johnny's Reloading Bench on YouTube. He does some things I don't agree with, but the fundentals are there and it's a decent way to make sure you're getting the basic process right. He also has gas guns on his channel.

 

[ChitownCopper]

Do you have an adjustable gas block?

ARs are harder than bolt guns to reload for because your load is going to effect how the gun gasses and ejects. You may want to start low and increase the load only until the gun functions and ejects nicely and stop there.

1000yards with an 18" 308 gas gun will be a challenge. You're definitely subsonic out there, meaning you will want to find a bullet that handles the transonic transition well. 600 is good to go; no worries there.

I second Johnny's Reloading Bench on YouTube. He does some things I don't agree with, but the fundentals are there and it's a decent way to make sure you're getting the basic process right. He also has gas guns on his channel.

Yes I have adjustable block

 

[Old Tanker]

So the video says have the die touch the shell holder to resize. When I do that it's way to much and sits way below the line in my head space guage

I am still a beginner and when first starting out had the same problem. I did buy the comparator so I can measure. My Lee .223 die is backed off about 1 turn and my Hornady 6.5CM die is backed out about 1/2 turn. My first loads were always book starting loads. When two sources differed, I chose a median that was safe in both books. I worked up in 1% increments which is usually .3 to .4 grains always looking for pressure signs. I read and re-read the Lee, Lyman and Hornady manuals before doing anything, then went to an experienced, friends house to work through the process. I do one process at a time; decap one day, clean another day and size on another. When charging and seating, I weigh every charge. Once charged, the case goes straight to seating. It doesn’t sit in a block with other charged cases. This is my way of ensuring that I don’t double charge. I have now achieved sub 1/2 MOA groups with the 6.5CM and down to 1/2 MOA with the .223. Keep in mind, my loads don’t achieve the speeds that competitive, long range shooters need but I am not experienced enough to push those limits.

 

[ChitownCopper]

That's how I have been starting one processes at a tim. Thanks for all the good advice from everyone

 

[Ccrider]

I have learned what I know about reloading without a mentor by reading, studying and asking questions. That does not mean that everyone can do it but it does mean that it can be done if one is methodical and uses common sense.

Since you are comfortable loading and shooting your 308 loads, why not take the time to lay our step by step what you are doing and then showing us your results. I bet if you do this you will receive some constructive criticism.