77 Gr Match Bullet Roundup

Lets do a imperfect 77 Grain Match Bullet test. Please note. Each bullet will like a certain load for maximum accuracy, but that would be too expensive to find out and test, so we went with the same load across all the bullets and cross referenced with 5 different powders to get an "overall idea". We shot 6 round groups. We did 2 measurements.
#1 Measured all 6 bullets shot diameter

#2 Measured the "best" 5 shots diameter

So in other words, the "best" 5, discards the worst shot, which was often the first shot out of the magazine, but but absolute, some where the last shots. You can get an idea of pattern shooting 6 shots, of course 10 would be better. Expensive.

Here are all the loads: Brass: Starline 556 Neck Turned, Primers CCI BR4. Here are the bullets used, all 77 grain Match.
Lapua Scenar, Barnes MatchBurner, Sierra Matchking, Nosler Custom Competition, Berger OTM, Midsouth Shooters Supply Classic Match & Finally Hornady Aeromatch

Barrel Shilen 1:7.5 20"

Since I test all the time, I can tell the weakness of this test is that these bullets don't prefer this same load across the board. For example. Benchmark doesn't work well with 22 grains and Berger OTM, but shoots consistent .7 MOA or so at 21.7 grains. So keep that in mind.
Notes: Shooters World Precision Rifle is "extremely" similar to Varget. I think its better, but loads work near each other.
Accurate 2520 is the highest velocity of this group at near 2750 FPS. Then N140 is below that, and then SWPR, N135 and BM all are around 2600 with 20" barrel.

Data

Correction: Rank 5 should say RANK 6, all 6 bullets counted. Rank 4 should say Rank 5, "best" 5 shots counted. This Shilen Barrel has around 4,000 rounds through it. Amazing it still shoots some .4" groups at 100 yards with the right loads.
Obviously from the data, we can see this is a POWDER test AND a Bullet comparo.
Which bullet was better overall with this load? It was not even close. LAPUA Scenar won if you count all 6. If you count the best 5, then Berger OTM was tightest group.
I would say from my testing many years, that I agree with that. Lapua makes the best 77 grain bullet, period. And Berger OTM is next, then below that you have your normal SMK.
POWDER?
Shooters World Precision Rifle WINS with the TOP 3 groups counting all 6 shots!!, which is like Varget and N140 is more distant second. Then Accurate 2520 third. If we bring velocity into it, then N140 would be best choice here for say, 600 yards. All have good SD, except 2520, but that is still OK.