Minimum Engagement Distances in Meters

Mass of Projectile Used in Match / Event

Muzzle Energy / Class

Muzzle Velocity (relative to 0.20g / 0.30g BB's)*

0.12g - 0.30g

0.31g - 0.43g

 

 

6 mm

 

 

 

< 1.2 Joules

<110 /   90  m/s

5

6

1.2 - 1.5 J

<122 / 100  m/s

9

12

1.5 - 1.9 J

<137 / 112  m/s

14

19

1.9 - 2.3 J

<152 / 124  m/s

19

25

2.3 - 3.4 J

<183 / 149  m/s

25

35

3.4 - 4.6 J

<213 / 174  m/s

31

45

 

 

8 mm

 

Muzzle Energy / Class

Muzzle Velocity (listed as 0.34g / 0.45g max)**

0.34g

 0.45g

< 1.5 Joules

<  95 /   82  m/s

6

 8

1.5 - 2.3 J

<117 / 102  m/s

11

 15

2.3 - 3.4 J

<140 / 122  m/s

17

 22
3.4 - 4.6 J <165 / 143  m/s 20 26

4.6 - 5.3 J

<177 / 154  m/s

23

 31

 

*    Because high-powered rifles -- particularly gas rifles -- are able to transfer more energy to heavier BB's, we require that all rifles/pistol that chrono at more than 120 m/s with 0.20g BB's be re-chrono'd using 0.30g BB's.  The reason for this is covered in detail in Section VI-A:  Determining Muzzle Energy.  For instance, if a rifle chrono's at 175 m/s with 0.20g BB's, we re-chrono the rifle to determine its muzzle energy using 0.30g BB's.  If the same rifle chrono's at 156 m/s with 0.30g BB's (for example), we would use the 3.4-4.6 J section to determine the shooter's MED (and NOT the 2.3-3.4 J section).  If this player uses 0.30g BB's for that rifle, they would be given an MED of 31 meters.

 

**  Velocity listings for 8mm BB's are listed as the maximum for 0.34g and 0.45g BB's, respectively.  Example:  A rifle shooting at 2.3 J will chrono at 117 m/s using 0.34g BB's, or 102 m/s using 0.45g BB's.  If a rifle chrono's at 162 m/s with 0.34g, you would use the 3.4-4.6 J section (which allows a maximum for 0.34g of 165 m/s) and would have an MED of 23 meters.  If a rifle chrono's at 99 m/s with 0.45g, they would use the 1.5-2.3 J section (and have an MED of 15 meters).