77gr Sierra 223 ?

[Bullet]

Could someone with the newest Sierra manual tell me what they list for the accuracy load for 77gr SMK’s for an AR-15 ?

Also what are the MAX loads for Varget and Reloader 15 ?

 

[mc223]

Seirra Manual shows 24.1g V-V N-140 as the accuracy loading for the 77.
From MY 26 in. barreled White Oak 1 in 7, I use 25 g V-V N-140 in Lake City brass with Rem 7-1/2 primers. I have been loading the same with RE-15. I have gone up to 26 g Varget. Did not really even gain any usable velocity. Varget tends to be very dirty in heavy loadings. Seirra Customer service line rep told me that the optimum velocity for the 77 is 2650 to around 2800. 25 g V V N-140 gets me up to the high side with Chrony readings averaging 2820 with extremely good accuracy. Average 200 yd 10 shot groups just under an inch.
Work up cautiously.

 

[Bullet]

Thanks just what i wanted to know. I just happen to have a few pounds of VV N140 too.