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PostPosted: Tue Nov 26, 2019 8:41 pm 
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Joined: Mon Aug 19, 2019 6:43 am
Posts: 39
Location: Whitby, ON
Hello Gang.

I was able to get another couple of hours shooting time with the TX to do a little experimenting, and to get the gun zeroed in at 10 yards for the sub-division squirrel population reduction project. :-)

I wanted to try a couple of different pellets that are more suited for dispatching squirrels humanely just to make sure that they are still accurate at 10 yards, even though the 7.44 gr. Air Arms would have worked fine. After spending my first few hours with the TX last month, I can now see that my concern about accuracy at this close distance was unjustified. Someone mentioned in one of my earlier posts that the gun should be able to shoot pellet on pellet at that distance. Whoever said that knew what they were talking about. :-) Also, the Airmax scope had no problem perfectly focusing at that distance.

Once I was done playing around for an hour or so, it was time to zero up at 10 yards. I started by using the recommended target pellets for the gun that seem to work pretty well at the longer distances. They are the Air Arms Diabolo Field 4.52mm and 8.4gr. After a few shots to zero in on the bullseye, I fired 5 pellets through the same hole at 10 yds. Can't argue with that. :-) I set up the FX chrony and here are the results. The velocity took a jump up from my last round of shooting and the variability was a little lower which is great. The only thing that was different this time is that it was much colder (around +4 degrees vs. + 15).

Shot count: 10
Low: 916
Hi: 930
Avg: 924
Spread: 14
STD Dev: 3.8
926
923
923
923
926
930
926
928
923
916
This pushed the foot pounds up to 16 for this pellet, where it was at 15.4 in the warmer weather.

Next was the JSB Match Diabolo Exact Heavy .177 4.5mm 10.34gr.

The velocity dropped as expected, but the average foot pounds come in at 16.3, and the variability was getting pretty good. I didn't make any adjustments to the scope at all and proceeded to shoot 5 of these pellets through the same hole. I thought that was pretty cool. :-)

Shot count: 10
Low: 837
Hi: 849
Avg: 843
Spread: 12
STD Dev: 3.3
840
844
840
844
844
842
837
849
844
844

I guess theoretically less velocity = less pass through, plus the higher energy = more terminal damage.

The last ones I tried out was the Preditor Polymag .177 4.5mm 8gr.

As you probably already know, these are hunting pellets with the reputation of losing accuracy once you are beyond ~25 yards or so. Since I'm dealing with squirrels and chipmunks at close distances at this point in time, I thought I'd see how they do. As you can see from the chrony results, the velocity shot up and the energy average calculates out at 15.7 ft.lbs. The difference was in the accuracy and the variability, but at 10 yards it's not a problem at all. I took 5 shots at the target and the pellets moved around about a pellet's width. At the end of the 5 shots I still had one hole in the cardboard but it had opened up to about 1/4". Still more than accurate to deal with critters at that distance.

Shot count: 10
Low: 923
Hi: 949
Avg: 940
Spread: 26
STD Dev: 7.6
923
942
935
944
946
935
942
949
946
939

So I think that I'll use the Polymags for the 10 yard squirrel shots. The variability and accuracy at that distance will be fine and they should result in an instant/humane kill on the squirrels with a head or vitals shot.

Once I get back to the country property in the spring, I'll see how the JSB Exact Heavy pellets do at the mid-range/longer target distances, and I still haven't cracked open the tin of JSB Exact RS 7.33gr pellets yet. Something to look forward to!!

I hope someone found this data interesting. I know I had fun gathering it. :-)


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PostPosted: Tue Nov 26, 2019 10:00 pm 
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Joined: Wed Jul 26, 2017 7:01 pm
Posts: 2170
Location: GTA, ON
Hmm~ the numbers are not only interesting but actually very helpful and informative ~

Thanks for sharing and congrats on the one hole shooter ~

Sent via Samsung S9

_________________
Future AA ProSport
HW30/35
2240+14" barrel
Camo Chaser long barrel rifle kit
P3+2x20 Kit Scope
HW40+Extender
HW45+Grip panels from Russia


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PostPosted: Tue Nov 26, 2019 10:09 pm 
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Joined: Mon Aug 19, 2019 6:43 am
Posts: 39
Location: Whitby, ON
Thanks Yep. Glad that you found the info interesting.

I'm happy with the accuracy at 10 yards as that makes me feel confident on not screwing up when dealing with a few pests at short distances. The real tests will come next year when I work on tightening up my grouping at 35 yards and see what I can do out at 50 and 55 yards. I'm looking forward to that as I still haven't shot the gun at anything over 35 yards! :-)

Cheers.
Gary


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PostPosted: Wed Nov 27, 2019 10:50 am 
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Joined: Tue Jan 03, 2017 8:16 pm
Posts: 58
Location: Ottawa
Hi Gary - I also find your numbers very informative. While I do not currently own a TX200, I looked at one a couple of years ago when I was looking for a new air rifle. I totally loved everything about the TX200, but the overall weight made me look for something lighter and I ended up with a Beeman R9 with a Hawke Air Max 4-12X40 scope and have been extremely pleased with my decision to date, but still can’t help but think about the TX200 and making comparisons.

I found the Beeman to be very “twangy” when I first started shooting it, but now after 2-3 tins of pellets it has really quieted down, cocks much smoother and the trigger continues to improve, and is now one of my quietest air rifles. At 10M it too will place pellet on pellet if I do my part.

I did a Chrony test on the R9 using JSB 8.44g- 4.52 and am posting results as I find the comparison very informative and felt others may also be interested. Needless to say I was very impressed with this consistency.

Shot count: 10
Low: 869.2
High: 876.7
Average: 873.3
Spread 7.49
STD Dev: 2.44
876.7
873.1
875.7
872.9
873.8
871.9
869.2
870.8
876.6
871.9

Foot pounds for this pellet 14.30

Happy shooting everyone.
Bill


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PostPosted: Wed Nov 27, 2019 11:11 am 
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Joined: Wed Jul 26, 2017 7:01 pm
Posts: 2170
Location: GTA, ON
Thumbs up for you two guys!

Sent via Samsung S9

_________________
Future AA ProSport
HW30/35
2240+14" barrel
Camo Chaser long barrel rifle kit
P3+2x20 Kit Scope
HW40+Extender
HW45+Grip panels from Russia


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PostPosted: Wed Nov 27, 2019 1:10 pm 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 6088
Location: P.G. B.C.
Good stuff, Joatmon. The Predator Poly mags worked just fine on gophers to 56 yards, from my HW97 in .177.
BTW- the heavier the pellet, the more likely they will pass through, even though they are going slower. They
have, that is, develop more momentum.


Attachments:
HW97177andrats001_zps23529c86.jpg
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Daryl
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PostPosted: Wed Nov 27, 2019 7:27 pm 
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Joined: Mon Aug 19, 2019 6:43 am
Posts: 39
Location: Whitby, ON
Thanks again for the comments and for sharing your knowledge.

Bill, that's some consistent numbers coming out of your R9. Hopefully the Tx will settle in some more as I don't even have 200 pellets through it yet. Also, I have no reference point for comparison of sound or 'twangyness' since this is my first gun. I find the Tx to be quiet enough for what I'm doing.

Daryl, thanks for your comment re: pass through. It makes sense when I thingk through it. The heavier pellet is the same shape and diameter than the 8.4gr. Even though it's coming out a slower speed, the foot pounds of energy is actually higher than the lighter pellet. Hopefully the polymag mushrooms out and slows down a bit, but on the little squirrels, I'm expecting things to just blast through. I'm building a hefty backstop/feeder for the squirrels, and if for some reason the pellet gets through that, there's just my garden shed behind it.


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PostPosted: Thu Nov 28, 2019 2:25 pm 
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Joined: Wed Jan 05, 2011 12:35 pm
Posts: 6088
Location: P.G. B.C.
With head shots, there is the possibility of an exit (on gophers), however the pellet will be "spent", barely making it.
On chest shots, I doubt very much you would get an exit.
With grey and black squirrels, I doubt you'd get an exit on head shots either, IIRC my experience shooting them back in Ontario
when I was a kid. With the round nose pellets, I think the chance of exits is much higher at the TX's power level.

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Daryl


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