GTA
All Springer/NP/PCP Air Gun Discussion General => Air Gun Gate => Topic started by: nced on November 11, 2014, 06:28:02 PM
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I'm in the process of selling the West Virginia property so I haven't even shot my R9 since the last THAGC match at the NC airgun show. Well...today was a beautiful day for shooting so I took the R9 and 3-12x50 Aeon scope to my back yard practice lane along with some 4.52mm 8.4 grain JSB exact pellets and did some "barrel tweaking" and plinking. Here is a pic of my lane in fall colors from the 30 yard line.......
(http://www.snapagogo.com/uploads/source/3142014/1415743492_1819058121_FallPracticeLane.JPG) (http://www.snapagogo.com/photo.php?id=61841)Uploaded at Snapagogo.com (http://"http://www.snapagogo.com")
I had "re-purposed" the frame from an abandoned campaign poster to use as a support for my paper targets like this........
(http://www.snapagogo.com/uploads/source/3142014/1415743444_696008916_CampaignTargetFrame.JPG) (http://www.snapagogo.com/photo.php?id=61839)Uploaded at Snapagogo.com (http://"http://www.snapagogo.com")
In the past I had simply tacked targets to the log back stop, but now I have my paper targets supported at the same distance as the metal targets instead of a foot or so behind.
The reason for "tweading my R9 barrel" was that I optically zero my scopes and then bend the barrel till the poi is within 1/2" of the aim point at 30 yards, then the final adjustments are done via turrets. Here is the target showing the poi shifting by barrel bending........
(http://www.snapagogo.com/uploads/source/3142014/1415743432_918238519_30yardtargetNov112014.JPG) (http://www.snapagogo.com/photo.php?id=61838)Uploaded at Snapagogo.com (http://"http://www.snapagogo.com")
All shots were made HFT style (sitting on a bucket resting the gun on cross sticks) and I was really thinking I was "all that and more too" when I shot the 5 shot one hole group on bull #1 at 30 yards. After shooting this group I proceeded to "click the turrets" to the left and then shot group #2. LOL....the 1st three shots went into one hole but I had over-adjusted the turret to the left, however the next two shots made me wonder! I proceeded to shoot bull #3 and the wild hits on each side of the bull really showed me that I indeed "wasn't all that"! I then almost finished zeroing the gun by shooting at bulls that were used for barrel bending and though the hits were to the right side of the 3/8" diameter circle of bull #30 I decided to do some 50 yard shooting since the fall sunlight was leaving. Here is the 5 shot group I shot at 50 yards........
(http://www.snapagogo.com/uploads/source/3142014/1415743451_1738447830_50yardNov112014.JPG) (http://www.snapagogo.com/photo.php?id=61840)Uploaded at Snapagogo.com (http://"http://www.snapagogo.com")
Four of the pellets landed within 3/8" ctc with the second shot opening the group to 5/8" ctc. While I still have to do a bit of "poi adjusting" I'm really pleased with the changes I made to my .177 R9 after the match at the NC airgun show!
A couple changes made.......
1. Gun was de-tuned a bit to shoot the 8.4 grain JSBs at 830fps instead of the previous 860fps.
2. I stripped and relubed with the Dupont Krytox 224 instead of the Ultimox 226which I had been using for a while. The third digit of the number denotes the base grade of the grease and "224" is two grades THINNER than "226".
3. I made the trigger into ALMOST a single stage trigger by removing most of the 1st stage travel. Took some getting used to but I'm thinking that I like the change.
Anywhoo......supposed to be another nice day tomorrow followed by a cold spell so I might get another chance to play around outside tomorrow!
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Cool stuff Ed. Looks like some beautiful real estate. Oh yeah and some good thoughts on gun tinkering.