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 Post subject: Re: 30cal B51
PostPosted: Mon Oct 15, 2018 12:31 pm 
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Joined: Mon Sep 05, 2005 10:55 pm
Posts: 6845
Location: Rocky Mtn Hse Alberta
Finally shot a string from full to see where it's at

3000psi less one clearing shot to check for valve lock
46.3 grain FX pellets
Went like this:
636, 625, 666, 655, 664, 687, 712, 727, 729, 749
767, 761, 801, 804, 825, 850, 864, 879, 891, 886
887, 890, 896, 878, 868, 865, 858, 838, 825, 813
806, 791, 772, 754, 738, 714, 695, 673, 651, 624 stop. Pressure was at 600psi!

Looking like 12 decent shots from 850 to 896 back to 858

Will try to find a fill pressure that starts at 850ish. Bob? Any thoughts on how to guestimate that?

Pretty pleased so far.
Walter

Tried 2000psi and iirc went 895
Filled to 2500 and went 767 so it appears a fill to 2200psi will be the fill for the best 12 shots.

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 Post subject: Re: 30cal B51
PostPosted: Mon Oct 15, 2018 2:00 pm 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 6077
Location: P.G. B.C.
You guys are amazing - nice to see you again, Walter.

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Daryl


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 Post subject: Re: 30cal B51
PostPosted: Mon Oct 15, 2018 6:15 pm 
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Joined: Sat Aug 02, 2008 2:14 pm
Posts: 756
Location: South of a Border!
Very interesting indeed, looking forward to the end result. :lol:

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Daisy 188 "Repeater" and
a Detuned at44


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 Post subject: Re: 30cal B51
PostPosted: Tue Oct 16, 2018 12:15 am 
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Joined: Sat Nov 03, 2007 4:19 pm
Posts: 8988
Location: Coalmont BC
Yeah, I would say fill to 2200-2300 and try that....

Bob

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Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal;
Too many! Springers, Pumpers, CO2, but I love my PCPs and developing them!
Proud Member of the 2000+fps Club!


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 Post subject: Re: 30cal B51
PostPosted: Tue Oct 16, 2018 12:20 am 
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Joined: Mon Sep 05, 2005 10:55 pm
Posts: 6845
Location: Rocky Mtn Hse Alberta
Thanks Bob, that is looking like the best fill pressure at this state of tune.

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Walter


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 Post subject: Re: 30cal B51
PostPosted: Wed Oct 17, 2018 10:49 am 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 6077
Location: P.G. B.C.
Have you shot it for accuracy testing with the pellets, Walter?

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Daryl


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 Post subject: Re: 30cal B51
PostPosted: Wed Oct 17, 2018 2:09 pm 
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Joined: Mon Sep 05, 2005 10:55 pm
Posts: 6845
Location: Rocky Mtn Hse Alberta
Not yet Daryl. It should shoot excellent as this is the rsterne seanpero
Airgun liner/barrel. Should be shooting again monday

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