A lot of people still use the Sierra 80gr otm for slow fire. Even though the 77 tmk has a higher bc. I will say by far the worse bullet to get any consistency out of is the 77gr nosler custom competition. This was the bullet black hills used mk 262 mod 0 then switched to the 77gr Sierra otm mod 1 load we see in use today. I did try the 77gr rdf initially i was impressed with the first 10 shot group. I tried some other loads with different bullets. Then I shot another 10 shot group withe 77gr rdf and the group went to hell. So I’m thinking these rdf’s like clean barrels?? I should buy more and do more testing. The great thing with this bullet it has a .457 BC and you can seat it to 2.250-2.260.
Last edited by 79S; 10/24/19.
Originally Posted by Bricktop
Then STFU. The rest of your statement is superflous bullshit with no real bearing on this discussion other than to massage your own ego.
