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Some HPA ideas...

September 17 2010 at 9:38 PM
  (Login gubb33ps)

Response to Sorry for the ambiguity, I was curious about AIR application


#1. .177 AR2078 HPA conversion.
[IMG][linked image][/IMG]

3-12X scope, 13CI 850psi tank, refinished stock, extended adjustable butt pad, LDC. Lightened striker, Delrin valve stem, tanker type valve, shortened tube, 79 gas block installed., RAP4 on/off.

RWS SuperMag 9.3gr./ @ 764fps / 12.1fpe+ 95 shots 3K to .9K

20yd. test target:
[IMG][linked image][/IMG]

#2. .20 QB78s HPA conversion.
[IMG][linked image][/IMG]

3-9X scope, 13CI 900psi tank, refinished stock, LDC. Lightened striker, HW 5mm barrel, Delrin valve stem, tanker valve, shortened gas tube, QB79 gas block installed, RAP4 on/off.

Benjamin Cylindrical 14.3gr. / 650fps / 13.4 fpe+

#3. .20 Crosman 2250 conversion.
[IMG][linked image][/IMG]

3-9X scope, RJ riser breech, 11.6 LW barrel, MA shroud, 13ci 750PSI tank, custom grips, TKO trigger, tube stock. Not shown: RAP4 on/off

Benjamin Cylindrical 14.3gr. / 570fps / 10.3 foot pounds 90 shots per 3K - .8K fill

20yd. Test target:
[IMG][linked image][/IMG]

#4. .22 QB 79 HPA conversion.
[IMG][linked image][/IMG]

3-9X scope, 13 CI 900PSI tank, shortened barrel, RWS comp./LDC, refinished stock, Lightened striker, shortened striker stroke, Delrin tanker valve stem, RAP4 on/off.

JSB 15.8gr. / 603fps / 12.8 fpe+ 85 shots per fill 3K-.9k

20yd. test target:
[IMG][linked image][/IMG]

#5. .25 QB78D HPA conversion.
[IMG][linked image][/IMG]

6X scope, 13CI 1200psi tank, LW .25 barrel, LDC. Lightened striker, RAP4 on/off, valve retaining screws, cut gas tube, QB79 gas block installed, tanker valve, Delrin valve stem.5
Kodiak 30.6gr. / 685fps / 31.9 fpe+ 50 shots per 3K-1.2K fill

20yd. test target:
[IMG][linked image][/IMG]

This message has been edited by gubb33ps on Sep 17, 2010 9:55 PM
This message has been edited by gubb33ps on Sep 17, 2010 9:54 PM

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