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BT Paintball


Product testing performed with DraXxus Paintballs







What do you think?
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BT-16 Elite
By Bill Mills - Photos By Dawn Mills - Sept 2005
 

Overview - How it Works - Disassembly - Testing - Raw Test Data

Raw Test Data

Velocity comparison between 1bps and 12 bps.
30 shot strings fired under microprocessor control.
DraXxus Hellfire paint.
Crossfire screw in compressed air system.
Stock factory Dwell and ROF settings.
Velocities listed in feet per second.
Special thanks to the Marshall family.

ROF Velocity Consistency

 Shot Number
1 bps
14 bps
1
250.6
249.6
2
254.0
232.6
3
249.6
259.8
4
269.2
261.2
5
249.6
265.8
6
255.6
195.2
7
262.8
256.2
8
253.0
255.8
9
258.8
261.0
10
256.6
261.8
11
246.6
252.2
12
246.6
241.4
13
253.8
243.6
14
246.8
234.2
15
251.8
252.2
16
248.6
252.8
17
255.8
239.0
18
246.8
262.4
19
260.6
245.2
20
259.2
254.4
21
252.4
249.8
22
253.4
257.0
23
247.6
259.2
24
249.2
257.4
25
242.2
251.0
26
251.2
245.8
27
250.6
248.4
28
257.8
257.0
29
249.6
249.0
30
258.2
244.0
High:
269.2
265.8
Low:
242.2
195.2
E.S.:
27
70.6
Ave.:
252.8
249.8
S.D.:
5.6
13.2
95%:
±2.0
±5.0

Understanding the Summary Data

High: This represents the highest velocity in the recorded string of shots.

Low: This represents the lowest velocity in the recorded string of shots.

E.S.: Extreme Spread - this is the difference in velocity between the highest velocity shot and the lowest velocity shot.

Ave: Average - this is the average velocity of the string of shots.  This is the number to look at to compare whether velocity is increased overall, or decreased overall by a change in a variable.

S.D.: Standard Deviation - S.D. Is a mathematicall way of expressing how close most of the shots are to the average.  The lower the Standard Deviation is, the more consistent the velocity is.

95%: This is an easier to understand way of expressing consistency.  Statistically, there is a 95% chance than a given shot will vary this amount or less from the average. 
 
 

Target Groupings:


Stock Barrel
 
 


Freak Barrel

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