Some Chrony numbers from todays shooting with tophat shims
The Gun: Talon SS, stock hammer, hammer spring and SS valve, Fully baffled, tophat set at .045, 12″ .22 barrel 3045psi fill.
My Goal: tons of consistant shots at around 500 fps. I shoot a lot of cans and paper so plinking is the order of the day for me. I do some hunting but right now 99% plinking. The CO2 mod would be PERFECT for me but I’m working with what I have on hand right now.
“Tophat shim” I wanted to adjust the tophat down further than .045 but it wouldn’t tighten any futher so I took a regular index card and cut it into a washer shape that would slide in between the tophat and the brass valve body. This took up the space as if I were able to tighten the tophat down more. I tried 1, 2 and 3 thicknesses of the cards as well as trying different power wheel settings to see how it effected the shooting as well as different pellets.
In place of the paper shims I bought some #10 washers and will put one behind the tophat and adjust the tophat from there.
I havn’t done the hammer slap mod yet either so I’ll be puting a 1″ foam and felt chair leg pad on the hammer to quiet it down as well as help with any valve/hammer bounce that might be causing some of the fps jumps. In the past this has dropped my fps by around 50 but I’ll chrony it and post the results.
I was amazed I was getting 10’ish fpe with 3 shims as the tophat could BARELY move, I don’t think I could have fit a 4th shim in there. How thick is a note card? .010? that is about all the tophat was able to move!
Not impressed by some of the odd jumps in fps on some of the shots and would like to get rid of ALL odd jumps in velocity. I’ll experiment some more this week and see what helps and what doesn’t.
I also brought some lighter valve springs with me and I might put one of those in and see what effect it has on my setup also.
CROW MAGNUM NOTE: they were hitting the target SIDEWAYS 😯 at 35 yards!!!! and they still somehow grouped 1.5″ right at the point of aim! very wierd.
WADCUTTER NOTE: 750-850’ish fps sent them LOOPING to the target very erratic accuracy in maybe 10-12″ group? only a couple hit the target at these speeds. 500’ish fps were grouping 1.5-3+” groups
Eun Jin/JSB Predator: VERY consistant fps as well as matching JSB Predator accuracy at 1″ @ 35 yards.
# FPS FPE P Wt. Power setting
1 840 22.4 14.3 PW6
2 847 22.8 14.3 PW6
3 857 23.3 14.3 PW6
4 848 22.8 14.3 PW6
5 850 22.9 14.3 PW6
6 847 22.8 14.3 PW6
7 852 23.0 14.3 PW6
8 683 29.4 28.4 PW6
9 686 29.7 28.4 PW6
10 685 29.6 28.4 PW6
11 685 29.6 28.4 PW6
12 681 29.2 28.4 PW6
13 684 29.5 28.4 PW6
14 677 28.9 28.4 PW6
15 677 28.9 28.4 PW6
16 682 29.3 28.4 PW6
17 679 29.1 28.4 PW6
18 675 28.7 28.4 PW6
19 675 28.7 28.4 PW6
20 675 28.7 28.4 PW6
21 800 23.4 16.5 PW6
22 798 23.3 16.5 PW6
23 800 23.4 16.5 PW6
24 747 20.4 16.5 PW6
25 791 22.9 16.5 PW6
26 763 23.5 18.2 PW6
27 760 23.3 18.2 PW6
28 762 23.5 18.2 PW6
29 757 23.2 18.2 PW6
30 752 22.9 18.2 PW6
31 666 28.4 28.8 PW6
32 666 28.4 28.8 PW6
33 662 28.0 28.8 PW6
34 745 17.6 14.3 PW6
35 757 23.2 18.2 PW4
36 685 19.0 18.2 PW2
37 781 19.4 14.3 PW2
38 800 20.3 14.3 PW2
39 801 20.4 14.3 PW2
40 805 20.6 14.3 PW2
41 792 19.9 14.3 PW2
42 757 18.2 14.3 PW1
43 767 18.7 14.3 PW1
44 732 17.0 14.3 PW1
45 757 18.2 14.3 PW1
46 766 18.6 14.3 PW4 1CARD
47 594 11.2 14.3 PW4 2CARDS
48 596 11.3 14.3 PW4 2CARDS
49 630 12.6 14.3 PW4 2CARDS
50 620 12.2 14.3 PW4 2CARDS
51 514 8.4 14.3 PW4 2CARDS
52 514 8.4 14.3 PW4 2CARDS
53 517 8.5 14.3 PW4 2CARDS
54 516 8.5 14.3 PW4 2CARDS
55 520 8.6 14.3 PW4 2CARDS
56 522 8.7 14.3 PW4 2CARDS
57 516 8.5 14.3 PW4 2CARDS
58 522 8.7 14.3 PW4 2CARDS
59 546 9.5 14.3 PW4 2CARDS
60 524 8.7 14.3 PW4 2CARDS
61 337 3.6 14.3 PW4 2CARDS
62 523 8.7 14.3 PW4 2CARDS
63 532 9.0 14.3 PW6 3CARDS
64 528 8.9 14.3 PW6 3CARDS
65 532 9.0 14.3 PW6 3CARDS
66 549 9.6 14.3 PW6 3CARDS
67 539 9.2 14.3 PW6 3CARDS
68 538 9.2 14.3 PW6 3CARDS
69 553 9.7 14.3 PW6 3CARDS
70 527 8.8 14.3 PW8 3CARDS
71 540 9.3 14.3 PW8 3CARDS
72 544 9.4 14.3 PW8 3CARDS
73 539 9.2 14.3 PW8 3CARDS
74 540 9.3 14.3 PW8 3CARDS
75 540 9.3 14.3 PW8 3CARDS
76 569 10.3 14.3 PW8 3CARDS
77 543 9.4 14.3 PW8 3CARDS
78 551 9.6 14.3 PW8 3CARDS
79 557 9.9 14.3 PW8 3CARDS
80 543 9.4 14.3 PW8 3CARDS
81 571 10.4 14.3 PW8 3CARDS
82 549 9.6 14.3 PW8 3CARDS
83 558 9.9 14.3 PW8 3CARDS
84 576 10.5 14.3 PW8 3CARDS
85 567 10.2 14.3 PW6 3CARDS
86 571 10.4 14.3 PW6 3CARDS
87 558 9.9 14.3 PW6 3CARDS
88 570 10.3 14.3 PW6 3CARDS
89 558 9.9 14.3 PW6 3CARDS
90 544 9.4 14.3 PW6 3CARDS
91 558 9.9 14.3 PW6 3CARDS
92 555 9.8 14.3 PW6 3CARDS
93 554 9.7 14.3 PW6 3CARDS
94 559 9.9 14.3 PW6 3CARDS
95 546 9.5 14.3 PW6 3CARDS
96 562 10.0 14.3 PW6 3CARDS
97 553 9.7 14.3 PW6 3CARDS
98 569 10.3 14.3 PW6 3CARDS
99 578 10.6 14.3 PW6 3CARDS
100 575 10.5 14.3 PW6 3CARDS
101 584 10.8 14.3 PW6 3CARDS
102 557 9.9 14.3 PW6 3CARDS
103 569 10.3 14.3 PW6 3CARDS
104 549 9.6 14.3 PW6 3CARDS
105 566 10.2 14.3 PW6 3CARDS
106 550 9.6 14.3 PW6 3CARDS
107 561 10.0 14.3 PW6 3CARDS
108 594 11.2 14.3 PW6 3CARDS
109 561 10.0 14.3 PW6 3CARDS
110 571 10.4 14.3 PW6 3CARDS
111 567 10.2 14.3 PW6 3CARDS
Sum FPE 1731.5
3045psi Start
2,320psi End
725psi used for 111 shots/1,731fpe.
Pellets
14.3 Grain DAISY .22 Max Precision Flat-Nosed
16.5 Grain JSB .22 Predator
18.2 Grain BEEMAN .22 Crow-Magnum
28.4 Grain Eun Jin .22 pellets
Jim.
All Replies
Viewing 12 replies - 1 through 12 (of 12 total)
James another thing i’ve done after instaling the lighter valve spring is get the tophat as close as possible. The next thing to experiment with is a lighter hammer. The valve mod i did was giving me good numbers and i still keep turning in the tophat as far as i could go which was .058. I was after power and conservation of air at the same time. Lighter spring= less travel needed, also my next thought was the lighter hammer. Somewhere on here awhile ago there was a post with some phenominal numbers and the guy had a old delrin 15gram hammer??? Have you also considered brass washers? Soft enough to sand on a sharpening stone to thin if necessary, but i have seen these and they are very thin, might complement the brass retaining top. After reading CygsX reply it makes sense that something harder would be more viable over the long haul. In a perfect world that stem would have threads quite a way down the length of it. But then they wouldn’t be able to market the micro 😆 Keep up the work i find it interesting as i’ve experimented in this dept as well.
what happens shot 50 or so….power dropping alot but then stays consistently at that power…any ideas ?
the weak retrun springs, bad numbers might suggest that it is wasting air and tophat needs to be moved even closer towards the bottle (or fatter shim)
but very interesting finds
with my first condor, it was stupidly curved power….like 500 fps and with each shot rising 30-50 fps until sonic s speeds and then down….totally useless
i tried with different tuff behind the tophat too….
really hard cardboard was ok, but crap on a rainy day
plastic washers worked ok, but eventually hammered flat
copper washer hammered flat too
iron/steel washer was best
oring would last about 30 shots and get beat to breaking point
i eventually found the sweet spot of the rifle which was about 35 fpe with jsb which it would shoot for 30 shots….and that was the best that rifle could do
POI, Oh I LOVE the Combro it is incredibly handy being so small, does the FAC calculation for you and has worked basically flawlessly except when the sun could shine right directly into the sensors(VERY odd circumstance).
Only issue you will have is if your gun can’t mount it to the front IE a couple rifles and some pistols then the other Chrony becomes very handy…I don’t own anything the chrony won’t fit on though.
I would buy another one in a minute if it broke, Jim.
Hey OPOC! oh yes please let me know what you’ve done that worked and didn’t… I LOVE to shoot mostly plinking cans, some paper and some hunting. My Dad is mostly a paper shooter but he has a bunch of squirrels and Opossums in his back yard that need a killin! He is making a serious attempt to making a Talon into a FT/Bench machine.
Jim.
How do you like that Chroni??? has anyone else used this “strap-on” 😆 chroni like compaired it to an alpha or other of the bigmanes?
… The idea of enjoying shooting during the test string has a ton of appeal!!!
Black Ops, you’re one serious plinker. I like that. As to paper punching, welcome to my world. Due to physical restrictions most of the shooting that I do is sit down and wack(hopefully) small paper targets. I do this with air guns, rimfires, and center fires (6PPC,etc). One thing that I’ve noticed is the mind set difference in paper punching. There are a lot of similarities between all three of these groups.
I think for the most part, airgunners are quite happy to tinker around with their gun until they get consistent power and accuracy to hit their target (bird or beast) and make a clean kill. This is as it should be. Me included. When you move on from there to target shooting things can get complex. The devil is in the details.
At this point bullet weight, size, shape, and consistency from round to round make huge differences. Chamber shape, smoothness. and bullet fit and seating depth all start rearing their ugly heads.
If you wish to continue along these lines, be warned, the accuracy bug is totally incurable.but, if you wish I’d be happy to tell of some of my expliots and the results. Example: Talon S/S. 24″ barrel, Leupold scope, suma dis & suma dat, and thinking how to convert all of this to full benchrest mode.
Hey Bod! how’s it going? I don’t have access to anything more than a few hand tools as I’m living out of a Hotel for school for a couple more weeks… when I get home in Jan I’ll be back on the wagon and crafting some better solutions 8)
Got some more shooting in today and was VERY educational as well as incredibly frustrating…my frustration was not completely warranted but my cramped back was puting me in a VERY pissy mood 😆
Gamo Squirrel is a TON of fun!!! Broke this guy out to see how it works.
First shot string, older valve w/steel valve body and the only change I made to it was to put in a very light valve spring and I was hoping for some great performance from this BUT what I found is this setup was MUCH less efficient on air usage, looks to use 18-29% MORE air to make the same power as the other valve with the strong factory valve spring.
# FPS FPE Wt. Power setting
1 361 4.1 14.3 PW10
2 577 10.6 14.3 PW10
3 801 20.4 14.3 PW10
4 793 20.0 14.3 PW10
5 797 20.2 14.3 PW10
6 774 19.0 14.3 PW10
7 760 18.3 14.3 PW10
8 773 19.0 14.3 PW10
9 758 18.2 14.3 PW10
10 775 19.1 14.3 PW7
11 780 19.3 14.3 PW7
12 779 19.3 14.3 PW7
13 787 19.7 14.3 PW5
14 778 19.2 14.3 PW5
15 780 19.3 14.3 PW5
16 790 19.8 14.3 PW3
17 787 19.7 14.3 PW3
18 789 19.8 14.3 PW3
19 790 19.8 14.3 PW1
20 782 19.4 14.3 PW1
21 789 19.8 14.3 PW1
22 711 16.1 14.3 PW0
23 785 19.6 14.3 PW0
24 758 18.2 14.3 PW0
25 789 19.8 14.3 PW2
26 786 19.6 14.3 PW2
27 820 21.3 14.3 PW2
28 782 19.4 14.3 PW2
29 782 19.4 14.3 PW2
30 828 21.8 14.3 PW2
31 790 19.8 14.3 PW3
32 792 19.9 14.3 PW3
33 790 19.8 14.3 PW3
34 789 19.8 14.3 PW3
35 787 19.7 14.3 PW3
36 789 19.8 14.3 PW3
37 772 18.9 14.3 PW3
38 801 20.4 14.3 PW3
39 776 19.1 14.3 PW3
40 782 19.4 14.3 PW3
41 782 19.4 14.3 PW3
42 778 19.2 14.3 PW3
43 777 19.2 14.3 PW3
44 785 19.6 14.3 PW3
45 785 19.6 14.3 PW3
46 777 19.2 14.3 PW3
47 778 19.2 14.3 PW3
48 784 19.5 14.3 PW3
49 757 18.2 14.3 PW3
50 775 19.1 14.3 PW3
51 773 19.0 14.3 PW3
52 754 18.1 14.3 PW3
53 765 18.6 14.3 PW6
54 752 18.0 14.3 PW6
55 751 17.9 14.3 PW6
56 621 12.2 14.3 PW6 -TH
57 610 11.8 14.3 PW6 -TH
58 620 12.2 14.3 PW6 -TH
59 605 11.6 14.3 PW6 -TH
60 606 11.7 14.3 PW6
61 611 11.9 14.3 PW6
62 609 11.8 14.3 PW6
63 610 11.8 14.3 PW6
64 610 11.8 14.3 PW6
65 612 11.9 14.3 PW6
66 612 11.9 14.3 PW6
67 609 11.8 14.3 PW6
68 625 12.4 14.3 PW2
69 626 12.4 14.3 PW2
70 624 12.4 14.3 PW3
71 613 11.9 14.3 PW3
72 608 11.7 14.3 PW3
73 616 12.0 14.3 PW3
74 607 11.7 14.3 PW6
75 609 11.8 14.3 PW6
76 609 11.8 14.3 PW6
77 604 11.6 14.3 PW6
78 610 11.8 14.3 PW6
79 606 11.7 14.3 PW6
80 608 11.7 14.3 PW6
81 604 11.6 14.3 PW6
82 588 11.0 14.3 PW6
83 616 12.0 14.3 PW6
84 606 11.7 14.3 PW6
85 608 11.7 14.3 PW6
86 612 11.9 14.3 PW6
87 609 11.8 14.3 PW6
88 609 11.8 14.3 PW6
89 610 11.8 14.3 PW6
90 607 11.7 14.3 PW6
91 610 11.8 14.3 PW6
92 610 11.8 14.3 PW6
93 606 11.7 14.3 PW6
94 618 12.1 14.3 PW6
95 614 12.0 14.3 PW6
96 613 11.9 14.3 PW6
97 611 11.9 14.3 PW6
98 610 11.8 14.3 PW6
99 596 11.3 14.3 PW6
100 609 11.8 14.3 PW6
101 604 11.6 14.3 PW6
102 605 11.6 14.3 PW6
103 607 11.7 14.3 PW6
104 598 11.4 14.3 PW6
105 602 11.5 14.3 PW6
106 609 11.8 14.3 PW6
107 608 11.7 14.3 PW6
Sum FPE 1652.8
Pellets
14.3 Grain Benjamin Diablo
Older tank steel Valve body, steel washer under tophat
Shot String #2 Newer tank(brass valve body) steel washer under tophat, tophat set at approx stock valve internals. Shoots frigging fantastic, very happy with this setup @ 12 or 20 fpe it shoots MANY consistant shots…stopped at 41 shots as my back just wouldn’t let me shoot any more today LOL 6 hours yesterday and 5 hours today was all it could take 😆 plus pumping the tanks up Friday and Saturday nights prolly didn’t help either as well as hitting back at the gym on Friday 😆 wonder why my back cramped up?
# FPS FPE Wt. Power setting
1 715 16.2 14.3 PW6
2 319 3.2 14.3 PW6
3 601 11.5 14.3 PW6
4 589 11.0 14.3 PW6
5 598 11.4 14.3 PW8
6 601 11.5 14.3 PW8
7 615 12.0 14.3 PW8
8 614 12.0 14.3 PW8
9 609 11.8 14.3 PW8
10 615 12.0 14.3 PW8
11 619 12.2 14.3 PW8
12 609 11.8 14.3 PW8
13 606 11.7 14.3 PW10
14 604 11.6 14.3 PW10
15 607 11.7 14.3 PW10
16 602 11.5 14.3 PW10
17 605 11.6 14.3 PW10
18 609 11.8 14.3 PW10
19 607 11.7 14.3 PW10
20 604 11.6 14.3 PW10
21 606 11.7 14.3 PW10
22 606 11.7 14.3 PW10
23 600 11.4 14.3 PW10
24 686 14.9 14.3 PW10
25 601 11.5 14.3 PW10
26 603 11.5 14.3 PW10
27 609 11.8 14.3 PW10
28 600 11.4 14.3 PW10
29 602 11.5 14.3 PW10
30 601 11.5 14.3 PW10
31 604 11.6 14.3 PW10
32 600 11.4 14.3 PW10
33 606 11.7 14.3 PW10
34 603 11.5 14.3 PW10
35 602 11.5 14.3 PW10
36 603 11.5 14.3 PW10
37 601 11.5 14.3 PW10
38 600 11.4 14.3 PW10
39 608 11.7 14.3 PW10
40 609 11.8 14.3 PW10
41 605 11.6 14.3 PW10
Sum FPE 475.8
Pellets
14.3 Grain Benjamin Diablo
Newer tank brass valve body, metal washer under tophat.
James have you considered a O-ring as a anit slap mod or as a spacer behind the tophat?? Seems maybe a 90 would be hard enough for a hanner slap mod and regular plumbimg o-rings from the hardware store for spacers??? Just a thought. maybe you could find a machineist who could add some extra threads to your stem to allow you to turn the tophat in as far as you wished?
still damn good numbers, just thinking of long term durability.
Did some more shooting this morning after making a couple mods and getting some different pellets.
HAMMER SLAP MOD: Tried puting a thick felt and foam chairleg stock on pad thing on the Breech slide to get rid of the hammer slap and it sure did 😆 damn that thing was insanely quite…BUT…even on power wheel of 12 it wouldn’t even let air out of the tank from 3,045 PSI 🙁 so I took off the felt part with a knife and left the foam…it works pretty decent and good enough for now.
RUBBER SHIM: First 43 shots were with a rubber washer under the tophat…then I noticed the rubber washer was stretched on one side and was actually stuck on the side of the tophat! it was getting literally blown and stretched at the shot from the blow by at the valve stem 😯 I NEVER would have thought could do that but it sure did, after the 3rd time I saw it stretched out I went back to my notecard spacers…using 4 this time and adjusting the tophat till I hit my fps/fpe goal of just under 20fpe.
PELLET: Found another pellet at the local Sporting goods store…Benjamin 14.3 grain Diablo’s(look exactly like the Crosman Premiers I think)…WOW these shoot nice! definitely the most accurate pellet I have shot yet. Groups at 35 yards were 5/8’s – 1 1/8″ shot from prone w/bi-pod, laying on a mat, ZOS 10-40×60 scope on 40X, light(0-2mph) to med(3-5mph) wind
Starting PSI 3045, ENDING PSI 2,175
Roughly 130’ish shots at 19 fpe seems pretty good from a 12″ barrel and I’m starting to get some really good consistancy.
# FPS FPE Wt. Power setting
1 114 0.4 14.3 ?
2 519 8.6 14.3 ?
3 864 23.7 14.3 PW10
4 832 22.0 14.3 PW6
5 473 7.1 14.3 PW6
6 460 6.7 14.3 PW6
7 488 7.6 14.3 PW7
8 497 7.8 14.3 PW8
9 507 8.2 14.3 PW9
10 524 8.7 14.3 PW9
11 528 8.9 14.3 PW9
12 837 22.2 14.3 PW9 +TH
13 798 20.2 14.3 PW9 -TH
14 656 13.7 14.3 PW9 -TH
15 641 13.0 14.3 PW9
16 735 17.2 14.3 PW9 +TH
17 752 18.0 14.3 PW9
18 750 17.9 14.3 PW9
19 742 17.5 14.3 PW10
20 757 18.2 14.3 PW10
21 781 19.4 14.3 PW10
22 781 19.4 14.3 PW10
23 774 19.0 14.3 PW10
24 774 19.0 14.3 PW10
25 771 18.9 14.3 PW10
26 763 18.5 14.3 PW10
27 769 18.8 14.3 PW10
28 783 19.5 14.3 PW10
29 760 18.3 14.3 PW10
30 776 19.1 14.3 PW10
31 784 19.5 14.3 PW10
32 781 19.4 14.3 PW10
33 787 19.7 14.3 PW10
34 774 19.0 14.3 PW10
35 782 19.4 14.3 PW10
36 774 19.0 14.3 PW10
37 777 19.2 14.3 PW10
38 802 20.4 14.3 PW10
39 781 19.4 14.3 PW10
40 770 18.8 14.3 PW10
41 770 18.8 14.3 PW10
42 761 18.4 14.3 PW10
43 793 20.0 14.3 PW10
44 824 21.6 14.3 PW10 PAPER
45 822 21.5 14.3 PW10 PAPER
46 831 21.9 14.3 PW10 PAPER
47 797 20.2 14.3 PW10 PAPER
48 757 18.2 14.3 PW10 PAPER
49 751 17.9 14.3 PW10 PAPER
50 777 19.2 14.3 PW10 PAPER
51 783 19.5 14.3 PW10 PAPER
52 782 19.4 14.3 PW10 PAPER
53 781 19.4 14.3 PW10 PAPER
54 781 19.4 14.3 PW10 PAPER
55 774 19.0 14.3 PW10 PAPER
56 783 19.5 14.3 PW10 PAPER
57 778 19.2 14.3 PW10 PAPER
58 781 19.4 14.3 PW10 PAPER
59 783 19.5 14.3 PW10 PAPER
60 781 19.4 14.3 PW10 PAPER
61 782 19.4 14.3 PW10 PAPER
62 778 19.2 14.3 PW10 PAPER
63 783 19.5 14.3 PW10 PAPER
64 792 19.9 14.3 PW10 PAPER
65 788 19.7 14.3 PW10 PAPER
66 787 19.7 14.3 PW10 PAPER
67 789 19.8 14.3 PW10 PAPER
68 784 19.5 14.3 PW10 PAPER
69 785 19.6 14.3 PW10 PAPER
70 776 19.1 14.3 PW10 PAPER
71 784 19.5 14.3 PW10 PAPER
72 785 19.6 14.3 PW10 PAPER
73 785 19.6 14.3 PW10 PAPER
74 789 19.8 14.3 PW10 PAPER
75 789 19.8 14.3 PW10 PAPER
76 778 19.2 14.3 PW10 PAPER
77 784 19.5 14.3 PW10 PAPER
78 776 19.1 14.3 PW10 PAPER
79 780 19.3 14.3 PW10 PAPER
80 780 19.3 14.3 PW10 PAPER
81 775 19.1 14.3 PW10 PAPER
82 779 19.3 14.3 PW10 PAPER
83 772 18.9 14.3 PW10 PAPER
84 775 19.1 14.3 PW10 PAPER
85 779 19.3 14.3 PW10 PAPER
86 783 19.5 14.3 PW10 PAPER
87 778 19.2 14.3 PW10 PAPER
88 778 19.2 14.3 PW10 PAPER
89 772 18.9 14.3 PW10 PAPER
90 775 19.1 14.3 PW10 PAPER
91 775 19.1 14.3 PW10 PAPER
92 780 19.3 14.3 PW10 PAPER
93 773 19.0 14.3 PW10 PAPER
94 778 19.2 14.3 PW10 PAPER
95 772 18.9 14.3 PW10 PAPER
96 775 19.1 14.3 PW10 PAPER
97 769 18.8 14.3 PW10 PAPER
98 767 18.7 14.3 PW10 PAPER
99 767 18.7 14.3 PW10 PAPER
100 769 18.8 14.3 PW10 PAPER
101 772 18.9 14.3 PW10 PAPER
102 766 18.6 14.3 PW10 PAPER
103 769 18.8 14.3 PW10 PAPER
104 774 19.0 14.3 PW10 PAPER
105 772 18.9 14.3 PW10 PAPER
106 774 19.0 14.3 PW10 PAPER
107 769 18.8 14.3 PW10 PAPER
108 772 18.9 14.3 PW10 PAPER
109 771 18.9 14.3 PW10 PAPER
110 774 19.0 14.3 PW10 PAPER
111 763 18.5 14.3 PW10 PAPER
112 772 18.9 14.3 PW10 PAPER
113 769 18.8 14.3 PW10 PAPER
114 760 18.3 14.3 PW10 PAPER
115 759 18.3 14.3 PW10 PAPER
116 763 18.5 14.3 PW10 PAPER
117 783 19.5 14.3 PW11 PAPER
118 758 18.2 14.3 PW10 PAPER
119 754 18.1 14.3 PW10 PAPER
120 755 18.1 14.3 PW9 PAPER
121 744 17.6 14.3 PW10 PAPER
122 752 18.0 14.3 PW10 PAPER
123 750 17.9 14.3 PW10 PAPER
124 758 18.2 14.3 PW10 PAPER
125 755 18.1 14.3 PW10 PAPER
126 760 18.3 14.3 PW10 PAPER
127 758 18.2 14.3 PW10 PAPER
128 750 17.9 14.3 PW10 PAPER
129 761 18.4 14.3 PW10 PAPER
130 759 18.3 14.3 PW10 PAPER
131 759 18.3 14.3 PW10 PAPER
132 760 18.3 14.3 PW10 PAPER
133 749 17.8 14.3 PW10 PAPER
134 749 17.8 14.3 PW10 PAPER
Sum FPE 2020.4
Pellets
14.3 Grain Benjamin Diablo
Shot #124-128 1/2″ low from 770-780 fps shots @35 yards
Groups 5/8-1 1/8″ most 3/4″ @ 35 yards 40X ZOS prone bipod
+TH or -TH = adjusting the tophat in or out slightly.
Hard to see but there is a rubber washer behind the Tophat.
Also hard to see but the felt/foam chairleg pad is visible on the back of the breech slide….had to cut this down as it absorbed too much energy to even let the gun fire! was really quite though 😆
This is where I’m shooting in Biloxi Mississippi, nice isn’t it 😆 Target is way in the back. A lot of land and stuff here but I’m here TDY for school so I had to find public hunting land to shoot on…this is actually a really nice spot since it’s paved and hunters aren’t real close but I heard literally several hundred shots in the 4 hours I was out shooting today 😯 I was kinda scared…
That’s the Combro Chronograph on the muzzle and a makeshift “anti-cant device” (string level rubber banded on the frame) which worked out REALLY well.
Just got this in yesterday it’s the new ZOS 10-40x60mm I’ll post some thoughts on it in the optics section…I think it looks frigging bad ass on here and it also came with a sun shade but I was worried about banging it as I carry the gun in a backpack to and from the field.
Jim.
Thanks for the heads up Leel! I will definitely give that a try as I have wondered about shims for a while but just hadn’t tried them yet till yesterday. I had never thought about using rubber but if your getting that kind of consistancy I’m all about it!
Makes sense to have the power up so you get a max hammer blow each time…I was getting some inconsistancy with the lower powers except with the Eun Jins, who knows why on those.
My Dad tried taking his extra hammer weight out of his Condor with Talon valve and his fps went all over the place! so a little more hammer weight might be worth looking into even with the Talon valve. Get a 100% consistant hammer blow and adjust the power with the valve opening.
More to come…Jim.
Blackops,
I had a similiar goal for my Talon SS, which was to get more shots at a slightly lower velocity, but still enough for pest shooting. I ended up puting one rubber washer behind my tophat. It can be stretched over the tophat, and will not fall off. This resulted is 750 fps with 16 grain JSB Exacts for about 65 shots from a 200 bar fill. The fps spread is extremely stable at only a 3 or 4 fps variance between shots. I could probably get quite a few more shots without much of a POI change, but 65 shots seems to be plenty for a trip to the woods for me.
I wonder if the rubber sapcer might be better at creating more consistent shots? I would also suggest keeping the power wheel set at above about “6” for consistent shot speed.
Good luck,
Lorrin
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Hey CygnusX I didn’t note it well enough, I turned the tophat in till I hit the 12 fpe mark after It dropped my 30fps limit. Wanted to do some shooting at 12 fpe and see how it did from there and my back started aching soo bad I tried the other tank then called it day when I was about to pass out 😯 I just looked at those 12 fpe #’s and realized just how danged consistant it was as well as how well it shot the Eun Jins @ 28 fpe…
Hey Bod, have a few things to try in the shim area and will be posting a buttload more info with all the dirty details 😉 I’ll be actually measuring the shims and tophat movement also instead of “1 notecard” 😆
I was just thinking about all the shooting and remembering the frigging backache I got from sitting/lying on the ground for 1-6 hours while shooting these strings 😆 OMG I was chugging Motrin and laying in my Motel bed typing the #’s and notes into the laptop…that’s is why these strings stopped where they did I have a nice comfy setup in the basement or garage for the future strings! I want to really push the envelope and shoot till she can’t shoot no more 😆 or at least be able to take a break without driving 30 minutes to shoot!
Jim.