Quote History
Although the above video showed excellent penetration for the 62GR. TSX Hog Hammer load fired from the 7.5" barrel, I would rate the overall terminal performance as marginal due to the low impact velocity. Water-shot testing at Barnes showed that
the 50/55/62GR. TSX/TTSX bullets available to handloaders
all require a minimum of approx. 1900 FPS impact velocity on flesh & bone targets to expand at all so you really want the bullet to strike with at least 200 FPS above the minimum to get full 2X plus diameter expansion.
The 70GR. TSX only requires a minimum of 1800 FPS to expand. With the chrono in the video showing only 2090 FPS MV for the Remington .223 pressure 62GR. Hog Hammer, that test shot probably did not achieve full expansion even at the muzzle of that ultra-short 7.5" barrel. I would expect quite a bit better terminal performance from a 7.5" barrel by using a lighter (faster) TSX bullet such as the standard 50GR. or 55GR. TSX at .223 pressure, by using a 5.56MM pressure 62GR. TSX loading as capitolP alluded to above, or by using a different bullet with a lower expansion threshold. No worries with the .223 pressure 62GR. Hog Hammer load when using a 14.5" or longer barrel but I would still prefer a 5.56MM pressure TSX load for increased terminal performance/range. HTH
EDIT for 5.56MM pistol shooters: The 708 FPS difference in MV between the 223 pressure 62GR. TSX Hog Hammer fired from a 7.5" (2090 FPS) and the 5.56MM pressure 62GR. TSX fired from a 10" (2798 FPS) affords a HUGE difference in terminal performance/effective range.
5.56MM 62GR. TSX water-shot expansion tests from 10" Barrel:
EDIT for reference: BHA 5.56MM 62GR. TSX load made 2490 FPS from an 8.5" barrel so will still have the 1900 FPS needed for expansion out to just past 200 yds. Plenty good!
EDIT for reference: BHA's data on their 5.56MM 50GR. TSX proprietary bullet load shows 2634 FPS from an 8" barrel, 3105 FPS from a 14.5" barrel, & 3310 FPS from a 20" barrel. The proprietary BHA 50GR. TSX bullet is NOT the same as the 50GR. TSX available to handloads. All TSX bullets are pretty tough to begin with but
the BHA 50Gr. TSX bullet has been further "hardened" for use against barriers so
requires a minimum of 2300 FPS impact velocity to expand.
BHA 5.56MM 50GR. TSX gel Shots from 8"/14.5"/20" barrels: