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I couldn't find Impact. But a paint called scorch is .688-.689. Impact and Scorch and made by the same company (gameface) So I figure they would both be close.
32 Degrees Team Color .689 - .691
32 Degrees Team Color(Winter Fill) .689 - .691
Adrenalin .688 - .691
Brass Eagle Afterburner .692 and
Brass Eagle Blue Streak .688 - .690
Brass Eagle Paintballs .689 - .691
Brass Eagle Top Brass .689 - .691
Cobra Snake Eggs .688 - .691
Core Action .689 - .691
Core Ice .688 - .691
Core Paintballs .689 - .691
Core Premium .688 - .691
DBX Practice Grade .689 - .691
Diablo Blaze .687 - .690
Diablo Crucifire .689
Diablo Dark Leigon Night .687 - .689
Diablo Dusk .687 - .691
Diablo Heat .693
Diablo HellFire .682 - .685
Diablo Inferno .688 - .691
Diablo Midnight .688 - .690
Diablo Nightmare .687 - .689
Diablo Recsport .687 - .690
Diablo Splash .687 - .690
Direct Hit .687 - .690
Drakula Attack .687 - .690
DraXxus Arctic Inferno .687 - .690
DraXxus Blaze .687 - .690
DraXxus Blitz .687 - .690
DraXxus Competitive Edge .687 - .690
DraXxus Dusk .688
DraXxus Hellfire .687 - .690
DraXxus Inferno .688 - .689
Draxxus Midnight: .683
DraXxus - Recsport .687 - .690
DraXxus Sunflare .687 - .690
DraXxus - XBall .687 - .690
Dynasty Dragon .689
Dynasty Dynamic .689
Eliminator .689
Empire Fuel .687 - .689
Fuego Premium .689 - .691
Game Face Scorch .688 - .689
Great American .688 - .690
Great American - Banana Ball .688 - .690
Great American - Sour Apple .688 - .690
I & I Sports Premium .689 - .691
JT Carnivore .689 - .691
JT Elite .689 - .690
JT Freedom .689 - .690
JT J-Ball .689 - .691
JT Maxim .689 - .691
JT Maxim 2 .688 - .690
JT Maxim 2 .689 - .691
JT Predator .689 - .691
Karnage Bite - .689
Karnage Tear - .691
Kick'n Paintballs .689 - .691
Kingman Java Classic .688 - .690
Kingman Java Supreme .689 - .691
Lazerball .690 - .691
Nelson Paintballs Affordaball .687 - .689
Nelson Anarchy .685
Nelson Challenger .685/.688
Nelson Dread: .688
Nelson Gold Medal .692
Nelson Hot Spot .691
Nelson Nel-Splat .691
Nelson Special Forces .685
Nitro Duck First Choice Field .688 - .690
Nitro Duck First Choice Slim fill .688 - .690
Nitro Duck First Choice Super Fill .688 - .690
Paintball Games Superball .692 and
Paintball Inc. Devil .691
Paintball Inc. Powerball .691
Paintball Inc. Proball .691
Paintball Inc. Proball Platinum .691
Paintball Junkies Ace .692
Paintball Junkies Joker .692
Paintball Junkies Morpheus .691
Paintball Junkies Mystic .690-.691
Paintball Junkies Reaper .692
Paintball Mania First Choice .692
Paintball Number 1 Premium Tourny .688 - .690
Pharmagel Tomahawk .690
PMI Advantage .688 - .690
PMI Big Ball .687 - .691
PMI Black Maxx .689 - .691
PMI Evil .689 - .691
PMI Invader .689 - .691
PMI Marballizer .685-.688
PMI Mercury .688 - .691
PMI Premium .689 - .691
PMI Stinger .683
Proball Devil 0.686 - 0.688 Small
Proball Lite 0.687 - 0.689 Medium
Proball 0.689 - 0.691 Medium
Proball Platinum 0.686 - 0.688 Small
RPS All Star .686 - .689
RPS Attitude .689 - .691
RPS Big Ball .689 - .691
RPS El Tigre .686 - .689
RPS EuroFlite .686 - .689
RPS Evil .686 - .689
RPS Flash .686 - .689
RPS Invader .689 - .691
RPS Lightening .686 - .689
RPS Marballizer .686 - .689
RPS Polar Ice .689 - .691
RPS Premium Gold .686 - .689
RPS Slamball .686 - .689
RPS SuperSwirl .686 - .689
Rufus Dawg T-Balls .688 - .690
Screamin' Banshe .688 - .690
Severe Paintballs Competitor .688 - .690
Severe Cyclone .688 - .690
Severe Hurricane .688 - .690
Severe Storm .688 - .690
Severe Tempest .688 - .690
Sheridan Premium .688 - .690
Sheridan Visible Impact .689 - .691
Smart Parts Death Paint .689 - .691
Smart Parts Smart Paint .689 - .691
Stinger Paintballs .688 - .690
TC Venom Paintballs .688 - .691
Tippmann Werks .689 - .691
Toroball Competition .688 - .690
Viewloader .689 - .691
Viewloader I-Blaz .689 - .691
Vortex Armageddon Series .687 - .689
WDP Victory .688 - .691
Winchester .688 - .691
WORR Competition .687
WORR Domination .687
WORR Perfection .687
WPN Toxic .688 - .689
XBall Bronze .688 - .689
XBall Silver .688 - .689
XBall Gold .688 - .689
Xtreme Aftermath .689 - .690
Xtreme Kryptonite (Glow in the dark) .689 - .690
Xtreme Legends .689 - .690
Xtreme Pointblank .689 - .691
Xtreme Steel .689 - .690
Zap Advantage .688 - .690
Zap Amp .689 - .691
Zap Chronic .689 - .691
Zap Chronic Ultimate .688 - .690
Zap Classic .689 - .691
Zap Performance Plus .688 - .690
Zap Primer .689 - .691
Zap Pro Series .688 - .690
Zap Pro European .689 - .691
Zap Rainbow .688 - .690
Zap Rec Series .688 - .690
Zap Seconds .688 - .690
Zap Select .689 - .691
Zap Spank .689 - .691
Zap Sport .689 - .691
Zap Tork .689 - .691
Zap Vapor .689 - .691
Zap X-Out .689 - .691
Zap ZXS Performance .688 - .690
Zap ZXS Rec Series .688 - .690
Zap ZXS Sport Series .688 - .690