We picked 3 Popular Barrels, in 20" and loaded up some popular, accurate bullets. 
  • WOA Predator 20"  1:8 Twist
  • WOA Shilen 20" 1:7.5 Twist
  • Compass Lake CLE Chamber 1:7 Twist
All testing was done at 102 yards, using Labradar
102 Yards
These are all 5 shot groups. 
5/4 means how many inches the groups were.  5 counts all the shots. 
4 counts the BEST 4 shots out of 5.  (basically, it eliminates that 1 flyer, if applicable)
Shilen - TOP
WOA Predator - MIDDLE
CLE Douglas - Bottom

No surprise here.  We already know what 3, top tier loads are, not in any order:
  • 24 Grains Shooters World Precision Rifle, 77 grain bullet
  • 21.5-22 Grains Benchmark, depending on which 77 Grain bullet you use
  • N140 - Honestly, it almost doesnt matter what load you pick, you can tune a load to be great from 23.5-24.5 Grains
  • Reloder 15 - 24 grains - good load in  many guns
We tossed in some 55 Grain loads that are decent for comparison.

Looks like CLE Douglas edged out the other 2 overall, and also had the smallest group. 

This all makes sense?  WOA Predator barrel is less money than the Shilen and the CLE Douglas, so I expect the Shilen and Douglas to edge it.  They do, consistently, now they are they GAS, and NOT piston operated.
the Data.....

You can see on right, it ranks each one overall. 
Rank 5 means what MOA group is ranked highest to lowest.  So out of 5 shot groups, you can see BM 22 grains, ranked #3 using the Shilen.
Rank 4 means MOA group is ranked highest to lowest.  So taking the best 4 shots out of 5, and ranking them, we can see that #1 was shot by the CLE Douglass, where 4 shots when through a .07 MOA hole.  Winner.

At very bottom you can see averages across each barrel. 
CLE Douglas was overall smallest at .76 for 5 shot groups and ties with Shilen for 4 shot groups overall.  Even if we eliminate the worst group from each, results are very similar, CLE still winner.

In the ranking, I weighted SD as important as the 5 shot MOA and 4 shot MOA, so SD had 33.3% influence on final Rank.

Overall winner?  CLE Douglas N140 24.1 grains, with an INCREDIBLE aggregate low score of 12.  That is super low.

It is no coincidence, this is Sierra's accuracy load.  24.1 Grains using 77 SMK. 

That won our test today.  Why did it win?  Sierra knows what the hell they are talking about, that is why.  And WOA and CLE make really good, value barrels that can shoot.

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