631 speed

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jonny1o1
Supporting Member 2009
Posts: 1621
Joined: Mon Mar 13, 2006 12:02 pm
Location: St. John's, Newfoundland&Labrador

631 speed

#1 Post by jonny1o1 »

how fast is it unmodded
Mulby
Posts: 1800
Joined: Thu Sep 01, 2005 8:54 pm
Location: Sk.

#2 Post by Mulby »

Both my 630 & 631 were purchased non-PAL, the 630 did just over 500fps with 8gr ammo, and the 631 did about 520fps with the same pellets. Both were stock out of the box performance. HTH,

Mulby
jonny1o1
Supporting Member 2009
Posts: 1621
Joined: Mon Mar 13, 2006 12:02 pm
Location: St. John's, Newfoundland&Labrador

#3 Post by jonny1o1 »

how fast is it pal
Mulby
Posts: 1800
Joined: Thu Sep 01, 2005 8:54 pm
Location: Sk.

#4 Post by Mulby »

I'm pretty sure that they are not imported to Canada as PAL rifles, but on the CZ website they are rated for about 560fps for the regular market. Many in the U.S. are reporting out of the box performance that is closer to or exceeding 600fps. I hope that eventually the 634 will be available on the Canadian market as a PAL rifle, I would get one and regester it of course. HTH,

Mulby
KevinS
Posts: 501
Joined: Thu Sep 01, 2005 8:46 pm
Location: Ontario

#5 Post by KevinS »

I have a 631 bought almost 3 years ago. Didn't chrony it unmodded but after a moly and tar job (with a bit too much tar) it shoots around 530 with Crosman points. I remember around the time I got mine people reported them shooting around 600fps. Seems the factory didn't bother to detune them. Maybe the newer guns are actually detuned? 500 - 520fps as Mulby said...

Kevin
Tailgunner
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Joined: Thu Sep 01, 2005 1:01 pm
Location: Wilkie, SK

631

#6 Post by Tailgunner »

Mine was molly'd and provided with an after market spring - did consistent right around 650............if I could of figured out how to get rid of that $%^#(*&* long trigger pull I would of kept it. :evil:

Cheers - Gus :D
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