Mak 90 16" barrel

PPU FMJ AVG- 2374 fps
High-2393 fps
Low-2350 fps

GOLDEN TIGER FMJ AVG- 2338.8 fps
High-2409 fps
Low-2312 fps

GECO FMJ AVG- 2318.2
High-2334 fps
Low-2311 fps

TULA FMJ AVG- 2326 fps
High-2362 fps
Low-2293 fps
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WASR 10/63 16"

PPU FMJ
AVG-2388
HIGH-2401
LOW-2355

GOLDEN TIGER FMJ
AVG-2372.4
HIGH-2388
LOW-2356

TULA FMJ
AVG-2405.5
HIGH-2436
LOW-2369

GECO FMJ
AVG-2285
HIGH-2314
LOW-2256
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SLR-107ur. SBR 11° target crown

TULA FMJ- avg-2040 fps
High-2088fps
Low-1975

GECO FMJ (brass) -avg-1993 fps
High-2047 fps
Low-1932

Golden tiger-avg-2000.5 fps
High-2006 fps
low-1992

Red army ELITE (brass) -avg-1923.4 fps
High-1938 fps
low-1894

Silver bear HP-avg-1998 fps
High-2022 fps
low-1971

PPU fmj (brass)-avg-2016.6 fps
High-2035
low-1999

Yugo m67 (brass)-avg-2030 fps
High-2089 fps
low-1975

I can't say without all the readings, but I suspect that many of those are statistically indistinguishable.

I agree.   The variations were minimal.   Golden tiger had 5 light primer strikes 2015 batch