Edgun R3 .22 Out-Of-Box Shooting
Happy New Year!
I have done some shooting on the 2nd day of Edgun R3 (.22) arrival.
The results are listed below. The gun was just “out of the box.” I scoped it with Hawke 4030, no barrel cleaning or any adjustments. Sequence of shooting is from target #23 to #16 in the picture below, mainly 5-shot groups. JSB pellets, RS, Exact and Heavy were used. Wind ~5-10 miles/hr, 63 F, based on the local weather channel; gun was filled to ~150 bars since my tank air-pressure ran low; paper target was set at 33 yards; benchrest position, having problems with setting the gun steady on the bag (need some recommendations on gun-rest or shooting bag from the Edgunners). The weight of the gun is primarily at the 2nd-half of the gun away form the muzzle and it is difficult to balance and shoulder under my shooting position.
#23: RS was used to sight-in the gun, it groups equally well as that shot from my Disco .22.
#22: Exact groups better than RS, but POI shifted to the left.
#21: Heavy groups well but one flyer (I think). If taking out that “flyer,” it groups ~.15” (note: caliper is not good, zero is not steady; precise measurement cannot be done in the way I was doing)
#18: RS again, 6 shoots, but it seems that the POI shifted to the left (compared to #23)
#17: Heavy again, the hole is a bit larger than the size of a pellet (RS).
#16: RS again, the pressure was low (~90-100 bars). The shots scattered but still covered by a dime. The POI was further shifted to the left compared to #23 and #18.
Conclusions: My Edgun R3 is kind of accurate at the tested distance and likes Exact/Heavy than RS. I put one small pebble (~0.3-0.4” diameter) at 50 yards and shot it without hold-over. I was surprised to kill it with just one shot using Exact (at 140 bars). The trajectory seems flat with Exact from 33 yards out to 50 yards (maybe at the 2nd POI at the line of sight) compared with 1.1 mildot hold-over (Leaper scope) with Disco at the same distance. Of course, Disco is much inferior in power.
Question: Is the left-shift of POI pressure-dependent in R3, scope problem or shooter’s ability (I think maybe this is the main one to consider)…? Welcome any comments from the experienced Edgunners? Will test it more in the future.
Regards,
Endo
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on my 2.5 i degassed gun and loosened scope airtube brackets and tried to level and straighten barrel with air tube basically move things around a bit and turned the barrel in the brackets some to get it in line with the air tubeand swapped mounts around i know it sounds like it shouldnt make a difference but it did, i think on the 2.5 you can tweek things around a little bit and get different poi changes
Hi, Fannman:
Thanks for the info. What did you do on the barrel and scope rings to improve the POI? How do they affect POI in a pressure-dependent manner?
I have read somewhere in the post by Ed (or someone?) that R3 is supposed to be less affected by pressure since the barrel is screwed onto the breach rather than bounded with the air tube. I might be wrong.
Regards,
Endo
i noticed the same thing on my 2.5 and have been playing around with the barrel a little bit and the scope rings to see if it makes a difference and i have been improving it some
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Thanks for the info. That makes sense, aligning the barrel and air tube. R3 doesn’t have this flexibility since the barrel is screwed onto the breach directly and there is no brackets for barrel and air tube. Will get another pair of rings (maybe Burris Signature Zee) to try out.