 |  | | | |  | |  |  | mac-1 modified 392 w/EJ's chrony |  | |  |  | |
 Posted: Mon Mar 16, 2009 7:44 pm |
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| sniper |
| Silver Status Member |
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| Joined: 28 Nov 2008 |
| Posts: 3752 |
| Location: Star, Idaho |
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i like this gun!!! these are 28.4 grain.
this is 14 pumps. disco shooters will get the same #'s. this shot almost blew a 2x3 inch chunk out of the 3/4" cedar back stop. maximum energy transfer!!
this is 8 pumps.
this is 5 pumps.
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| Posted: Sat Apr 18, 2009 8:52 pm |
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| sniper |
| Silver Status Member |
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| Joined: 28 Nov 2008 |
| Posts: 3752 |
| Location: Star, Idaho |
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killing cans this week with this pellet. i do believe i found the lead for this rifle! 
kinda expensive for plinkin' but still fun.  |
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I believe in gun control,
If there's a gun around I
want to be controlling it....... |
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| Posted: Sat Apr 18, 2009 8:58 pm |
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| fritz |
| Silver Status Member |
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| Joined: 25 Nov 2008 |
| Posts: 2444 |
| Location: New Jersey- outside of Philadelphia |
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| What do you get with 8 and CPH? |
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_________________
"I never set out to be wierd, it was always everyone else who called me it" -Frank Zappa
Speed is impressive, accuracy is deadly.
It's not that I'm not a people person, it's just that I'm not a stupid people person. |
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| Posted: Sat Apr 18, 2009 9:19 pm |
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| sniper |
| Silver Status Member |
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| Joined: 28 Nov 2008 |
| Posts: 3752 |
| Location: Star, Idaho |
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low 700's.
it works better with heavier pellets.
3 pumps is 500 fps 14.3. enough for cans/pests.
having the modded one renders the factory model dead.
don't quite remember but 14.3 @14 pumps is mid 800's.  |
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_________________
I believe in gun control,
If there's a gun around I
want to be controlling it....... |
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| Posted: Sun Apr 19, 2009 6:44 am |
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| fritz |
| Silver Status Member |
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| Joined: 25 Nov 2008 |
| Posts: 2444 |
| Location: New Jersey- outside of Philadelphia |
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3 pumps in my Sheridan at 10 yards is exactly the same POI as I have it sighted in for at 35 yards with 15.
Did some quick (and not very scientific) testing with a few large old candles yesterday:
25 pumps: 1 3/16" penetration (I fired off the 25 real quick because of the higher pressure)
15-12: 1 1/16" penetration
11: 31/32"
10: 15/16"
8: 3/4"
5: 5/8"
Proves that you don't need so many pumps for more power. Once you start reaching the limits of the gun it is only blowing excess air out of the barrel making more noise and no more power. |
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_________________
"I never set out to be wierd, it was always everyone else who called me it" -Frank Zappa
Speed is impressive, accuracy is deadly.
It's not that I'm not a people person, it's just that I'm not a stupid people person. |
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| Posted: Sun Apr 19, 2009 12:10 pm |
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| sniper |
| Silver Status Member |
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| Joined: 28 Nov 2008 |
| Posts: 3752 |
| Location: Star, Idaho |
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why would you pump a factory sheridan 15 times????
you're gonna kill the seals!!! |
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_________________
I believe in gun control,
If there's a gun around I
want to be controlling it....... |
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| Posted: Sun Jun 07, 2009 9:28 pm |
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| aircube |
| Veteran Member |
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| Joined: 02 May 2009 |
| Posts: 261 |
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| they are problably engineered to handle twice as many pumps as the max recomended, which would be 16, so 14-15 is likely very doable. I had a friend who had a pump crosman and he always pumped it until he couldt even move the pump handle it has under so much pressure. |
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| Posted: Sun Jun 07, 2009 10:00 pm |
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| sniper |
| Silver Status Member |
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| Joined: 28 Nov 2008 |
| Posts: 3752 |
| Location: Star, Idaho |
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| aircube wrote: |
| they are problably engineered to handle twice as many pumps as the max recomended, which would be 16, so 14-15 is likely very doable. I had a friend who had a pump crosman and he always pumped it until he couldt even move the pump handle it has under so much pressure. |
factory pumper seals aren't made for that. the cost of the mod on mine was the cost of the gun. almost $300 total.
you can pump a crosman 760 20 times (did it as a kid). doesn't do anything for power,accuracy or the gun.
the mod tim does is MADE to do this everyday.  all the guts are redone.
loud, powerful and accurate it is. 
don't be fooled about over pumping a pump gun. it don't mean sh!t.
if tim sells the mod it is legit. |
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_________________
I believe in gun control,
If there's a gun around I
want to be controlling it....... |
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| Posted: Sun Jun 07, 2009 10:06 pm |
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| aircube |
| Veteran Member |
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| Joined: 02 May 2009 |
| Posts: 261 |
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"loud, powerful and accurate it is. "
and wicked it sounds , I'd loved to have a few shots with the Mac'd Bejeni, how far a drive is cali? |
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| Posted: Sun Jun 07, 2009 10:30 pm |
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| sniper |
| Silver Status Member |
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| Joined: 28 Nov 2008 |
| Posts: 3752 |
| Location: Star, Idaho |
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i don't know where you are from.
www.mac1airgun.com. i think that's right.
i'll be his first marauder sale. |
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_________________
I believe in gun control,
If there's a gun around I
want to be controlling it....... |
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