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PostPosted: Wed Feb 13, 2019 9:28 pm 
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Joined: Wed Jul 01, 2015 2:14 pm
Posts: 305
Location: Manitoba
If you are talking about your D350 I would suspect maybe a scope or pellet choice problem. I went through four scopes, three of them Hawkes before they finally upgraded me to a Airmax 30 SF.
Try some AA 16g Fields the H&N Barracuda Match 21.3g, H&N Field Target Trophy 14.6g or the H&N Sniper Magnum 18g. Have not heard much good about the Grizzlies and I don't like the Crosman's much. Make sure you locktite the stock screws if you have not already done so.


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PostPosted: Mon Feb 18, 2019 2:47 pm 
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Joined: Mon Aug 26, 2013 12:19 pm
Posts: 82
Location: Alvinston, Ontario
About 50-60 shots in. Gun has smoothed back out. Within an inch at 20 yds, good enough for me.

Realize about pellet weights. A different gun, Ruger .177 Crosman pointed 940+fps 7.4g, 880fps Grizzly 8.4(Princess Auto), 790fps JSB 10.32.

Similar results with D350, currently shooting JSB jumbo heavies 18.13.
Once I get the harshnish out, going to find a scope (others are broke), currently using Williams Peeps on D350.

So far working good Robert.

Sent from my LG-H873 using Tapatalk


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PostPosted: Mon Feb 18, 2019 3:22 pm 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 5883
Location: P.G. B.C.
My most accurate pellet so far in 2 .22cal rifle, one HW PAP springer, the other a PCP PAP rifle and one <500fps pistol is the 21.30gr. H&H Match pellet- shooting to 20 yards.
Even the pistol puts them under an inch for 10 shot groups.

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Best Wishes
Daryl


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PostPosted: Mon Feb 18, 2019 4:04 pm 
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Joined: Mon Aug 26, 2013 12:19 pm
Posts: 82
Location: Alvinston, Ontario
D350 has hated every pellet but JSB heavies, whether it was the fit or weight? That's why I'm willing to try the bearings and smoother out. Working so far, many shoots left in tin.

D24 and Ruger shot everything, just adjust scope to whatever tin, shoot away. Within a beer cap.



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PostPosted: Mon Feb 18, 2019 5:10 pm 
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Joined: Wed Jul 01, 2015 2:14 pm
Posts: 305
Location: Manitoba
I have a Vortek kit in my 350 which helped a lot smoothing the shot cycle, a bit pricey and their springs aren't the best but a stock spring will fit in the Vortek sleeve. Under an inch at 20 with peeps is pretty good, my eyes are not good enough for open sights, getting old. Unfortunately you may have to go with a 30mm scope tube, the 1 inchers don't seem to hold up well to the recoil from a magnum springer, except for the MTC Mamba Lite I have but it was an upgrade from a cheaper scope that broke. When you do decide on a scope ask the seller if it will take the reverse recoil of a magnum springer, if they say yes you will be covered if you have to send it back.


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PostPosted: Thu Mar 07, 2019 9:48 pm 
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Joined: Wed Jul 01, 2015 2:14 pm
Posts: 305
Location: Manitoba
Update, three 500cnt tins done, some used in Disco and pistols so around 1300 though the 350 Mag.
Opened a 1250 cnt box of Crosman 10.5gr to use in the 350. Rifle is shooting good, no problems with the bearing yet.


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PostPosted: Sat Mar 09, 2019 11:03 pm 
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Joined: Wed Jul 01, 2015 2:14 pm
Posts: 305
Location: Manitoba
I went ahead and installed a thrust bearing in my BSA Scorpion Pistol. Probably 100 through the tube and working good.


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PostPosted: Sun Mar 10, 2019 9:55 am 
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Joined: Thu Oct 13, 2005 6:52 pm
Posts: 7087
Location: Vancouver Island BC
robertr wrote:
I went ahead and installed a thrust bearing in my BSA Scorpion Pistol. Probably 100 through the tube and working good.


Do you have any before and after data FPS is there a diff rents between a polished washer or the bearing ...


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PostPosted: Sun Mar 10, 2019 1:00 pm 
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Joined: Wed Jul 01, 2015 2:14 pm
Posts: 305
Location: Manitoba
No I did not check before and after the fps, but I imagine it went up slightly because of the 1/8" more preload the bearing and washers give the spring. 478fps with 8.4 AA's.
The reason for the installation is to remove the spring torque from the firing cycle which it definitely does, not to increase fps.


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PostPosted: Sun Mar 10, 2019 3:07 pm 
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Location: Vancouver Island BC
I can't say spring torque its something i have ever noticed in a low power spring gun have you compared it to just a polish and lube .


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PostPosted: Sun Mar 10, 2019 4:45 pm 
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Joined: Wed Jul 01, 2015 2:14 pm
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Location: Manitoba
Polished spring ends and polished spacers is what I used before the thrust bearing. My groups are smaller after the mod than before the mod, so it is doing something and being able to keep the target in scope view is also a nice bonus. You would have to shoot a 350 Magnum to know what I mean.


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PostPosted: Mon Mar 11, 2019 7:55 am 
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Joined: Thu Oct 13, 2005 6:52 pm
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Location: Vancouver Island BC
Quote:
You would have to shoot a 350 Magnum to know what I mean.



Been there done that i have owned and shot most of Diana Bsa HW Bsf Webley the list could go on most my springers i sold or gave away after first jammer to much trouble keeping hundreds of my guns clean so i know what you mean .....


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PostPosted: Mon Mar 11, 2019 12:13 pm 
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Joined: Wed Jul 01, 2015 2:14 pm
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Location: Manitoba
You have hundreds, I have three rifles two pistols. I guess if did not have these other money pit hobbies I would have more. :)


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PostPosted: Mon Mar 11, 2019 7:12 pm 
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Location: Vancouver Island BC
robertr wrote:
You have hundreds, I have three rifles two pistols. I guess if did not have these other money pit hobbies I would have more. :)

first airgun 1969 and you just can't own 1 LOL


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PostPosted: Sat Mar 16, 2019 7:56 pm 
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Joined: Mon Aug 26, 2013 12:19 pm
Posts: 82
Location: Alvinston, Ontario
Robert. Probably 200 shots through D350 .22 now. Bearing has smoothed out, every brand shots well, just a different POI. Never realized how bad my triggers are on my other guns.

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