A BBCOR bat is the standard of bat required for competitive high school and college baseball.
In comparison to the old standard, BESR, BBCOR bats are noticeably less powerful. This change was in part due to the https://docs.google.com/spreadsheets/d/1ivWvmYcHukBfP9gD7p_enMzctanICJp1Cxw4EmRCHDw/ 
the immense power that BESR bats produced, particularly at the collegiate level.
Let’s answer common questions related to BBCOR bats.
What is BBCOR and what does it stand for?
BBCOR was introduced in 2011 and stands for Ball Bat Coefficient of Restitution (B.B.C.O.R). It is now the standard
BBCOR measured the energy lost when a baseball bat connects with the ball – also seen as the bat’s “springiness”. A
high number greats a greater “trampoline effect”, meaning the ball will jump off the bat at a faster rate and can travel
further. A lower number = less pop and power.
This B.B.C.O.R. standard set the maximum number at .5; meaning, no legal baseball bat can exceed this number using
the BBCOR formula. The .5 number is only slightly higher than a wooden bat and significantly less than the BSER bats.
The pop of BBCOR bats is closer to the MLB standard than the previous standard (BESR). This gives high school and
college players some benefit of using a metal bat, without the overly-bearing offense stats and high school.

find more BBCOR bats of 2020 information:
https://drive.google.com/drive/folders/1sCYQFEYqp7dnK0m2QsS9Go6IQDMD_RX1
https://www.google.com/maps/d/edit?mid=1RrDSyrIyeh51gALyfDen6vrevcOhumzw
https://docs.google.com/spreadsheets/d/e/2PACX-1vSTFz44pF4lDCe8TNhxZsTC3kXJ9kigC4xP80wTC9Q6ToCjn54WTxf4e3ULttx4kqoWxCDpBgKTv1Mi/pubhtml