Re: 338 lm ai
What you are ultimately looking for is the same thing we are all looking for: the "Holy Grail" of all bullets. Something that will open reliably at 100 yds and at 1,200 yds. Problem is.....that bullet don't exist....at least, yet.
The Barnes X bullet (TSX, MLRX, etc.) opens reliably with excellent weight retention. The negatives are lower BC, higher $ cost/bullet, and some would argue a little loss in accuracy. They also need a min. velocity of 1,800 fps to open up at all. Lots of pss-throughs at closer ranges, which is great for blood trails, but also implies that not all of the bullet's energy was dumped into the body.
Bergers (VLD's & hybrids) tend to be a little better in accuracy, have a higher BC's and cost less. They tend not to have pass throughs, which implies that all or nearly all of the bullet's energy is dumped in the body. They also tend to "blow-up" at higher velocities and closer targets when they hit bone.
There are pro's and cons to both bullets. berger tends to do better in the LR categories. The Accubond tends to be less expensive than Barnes and about on par with the Bergers. because they are a "bonded" bullet, they don't blow-up at higher velocities when hitting bone at close range. Their downside has been that their BC's, whiloe better than Barnes, tend to fall short of the Bergers. They also require 1,600 to 1,800 fps to open correctly.
The new LR Accubond could be a bit of a game-changer - if you can believe the advertising hype. The new design is more like a VLD, thereby increasing the BC. For example, the 130 gr. Accubond has a stated G1 BC of .488. The new 129 gr. LR Accubond has a stated G1 BC of .561 - a huge improvement. Plus, Nosler claims that the new LR needs only 1,300 fps in velocity in order to expend. If this is true, we just gained another 200 - 300 yards in downrange terminal performance. We will have to wait and see.