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SM1 Review
 
 


Product testing performed with DraXxus Paintballs





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SM1 Velocity 
Comparison Data
April 2004

WARPIG Ballistic Labs Test Results 

Test Subject: Sanchez Machine SM-1 Barrel - comparing four different diameter inserts for their effect on velocity. 

Paintgun and Air System: CCM J2, Racegun conversion, Revolution loader, Crossfire 800 psi output 4500 psi air system, CCM Vertical regulator. 

Variable: Barrel insert diameter as labled.  As a base for comparison, the velocities from a one piece CCM barrel were also recorded.  Velocity was not adjusted between inserts, in order to overall velocity increase or decrease as affected by barrel fit.

Chronograph strings:  Each string represents two groups of 10 shots fired at 1 second intervals under microprocessor control - paintgun secured on test stand.

Temp: 79 F 
Humidity: 64% 
Date 9-Apr-04 
Paint: DraXxus Hellfire
Location: Hurricane Paintball
 

Velocity Data:

CCM
.679
.683
.689
.696
 
291.6
304
305.4
297.4
268
295
300.2
302.2
291.6
264.6
291.4
297.8
301.6
292.6
275.2
292.8
302
294
291.6
269.2
290.8
302.4
298.4
297.6
277.6
291
293.8
296.8
297.4
280
288.8
304.4
298.8
296.4
268.6
287.6
301.2
297.4
290.6
270.2
285.6
302.4
300.4
302.8
264.4
288
297.2
302.4
283.6
270.4
296
302.2
299.8
297
265.2
287.4
298.2
304.4
291.8
270.6
289.4
301
294.2
291.4
273
293.2
302.4
302.2
278.6
263.8
292.8
299.6
302.4
287.2
272.8
292
304.6
301.6
292.6
272.2
292
300
297.8
294.8
271.4
285.2
305.8
303
293
279.6
287.6
301
302.6
295.8
260.6
292.2
298.4
297.4
283.6
269
=======
  =======
 =======
  =======
  =======
 High:
296
305.8
305.4
302.8
280
  Low:
285.2
293.8
294
278.6
260.6
 E.S.:
10.8
12
11.4
24.2
19.4
 Ave.:
290.4
300.8
300
292.2
270.2
 S.D.:
2.8
2.8
3
5.6
5.2
  95%:
   ±1.0
    ±1.0
    ±1.0
   ±2.0
    ±2.0

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 in velocity. 
 
 
 
 
 
 
 
 
 
 
 
 

 


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