AR-10 243 Win 8 Twist 24" BBL

[dugby]

I have done some homework on what bullets will work with this twist, but I am curious if anyone has had any issues with the AR and slower powders. I am going to load some Retumbo and 107 gr Sierra BTHP. I know that garand gas guns want a certain burn rate for optimal operation of the gas system. Do you know if that is a concern on the AR-10?

Thanks,

Dugby

 

[Spiff]

I don't think you can hurt an AR by using the wrong powder, short of blowing it up. Garands need a specific burn rate because they've got an awful lot of reciprocating mass to get moving and the wrong powder and bullet weight can bend the oprod.

 

[dugby]

Well it did not hurt it, but it made a single shot out of my AR. Acually a single shot would be easier to re-load than this thing when it was messing up.

Too much gas or too little gas and it just quits working. I am going to get an adjustable gas block.

I brought it back to life for the time being by cocking the gas block off to one side so that the gas flow was reduced.

I understand a lot of the people with suppressors have similar issues.

The Load shoots well and that bullet is a good long range performer.