Hollowpoints points more accurate than FMJ s

[ja308]

Article from the NRA, reposted from the kindly folks at the Woodpile Report.

https://www.ssusa.org/articles/2018/8/19/why-are-hollow-point-rifle-bullets-more-accurate/

When a bullet jacket is drawn, some variation in sidewall thickness has to be tolerated, but the amount must be kept minimal. Most military FMJ bullets and expanding hunting bullets have average sidewall runouts of .0008-inch. Match-grade rifle bullet jackets must average less than half that, as bullets with minimal sidewall variations are more concentric and therefore more accurate.

[russ69]

You have it, the thinner match jackets are more concentric. The other important thing is a nice square and uniform base. That is easier to do if the base is at the bottom of the jacket cup rather than having the open cup at the base.