Author Topic: Tech Force 87 (Read 9961 times)

tpw · « **Reply #120 on:** August 30, 2010, 07:39:26 PM »

a shootin vid? and the trigger will smooth out with use. and will this thread ever end? LOL

darryl · « **Reply #121 on:** August 30, 2010, 07:48:04 PM »

I frequent one car thread that's up to beyond 350 pages! Most of the posts are about cars, but sometimes someone wants to know about a recent movie, or has other OT questions. I unsubscribe sometimes just because it gets a bit tedious (hmmm...)
darryl

tpw · « **Reply #122 on:** August 30, 2010, 09:22:21 PM »

im just bustin chops

darryl · « **Reply #123 on:** August 30, 2010, 09:38:20 PM »

that's what chops are for!

darryl

Rocker1 · « **Reply #124 on:** August 30, 2010, 10:17:24 PM »

You guys are killing me!!! lol!! thanks david

darryl · « **Reply #125 on:** August 31, 2010, 10:17:33 AM »

10 more hours and the loctite should be cured on my -87. Then I'll do some more shooting. I guess I'll have to run a few hundred more pellets through it, as it is still smoking. But it's a beautiful piece. That Bug Buster looks great on it, and is almost as long as a full-sized scope with the sun shade on. Very clear optics, too.
darryl

tworr · « **Reply #126 on:** August 31, 2010, 10:49:39 AM »

It's going to be a beast to carry with a scope for long periods of time, but it will be a deadly beast!!

I've thought about putting a scope on the TF87 for extreme accuracy, but will try to stay with the fiber optic sights for now.

My dad brought up his 20year old RWS48 and it shot much better than I remembered. He said he had a new spring and tune done last year when the spring broke, so that has made a WORLD of difference. It's not even the same gun now. Speed wise it was making 17 foot pounds if the Destroyer EX weight is 7.4g @ 1010-1033 fps.

The TF87 has more power and kicks harder as one would expect, but there seemed to be a slight less noise and vibration to the TF87.

Weight... his RWS had a scope so it was really heavy. Actually it probably weighed the same or close enough to the TF87 that I would hate to add more weight to it. I have long arms and kept picking up the longer TF87 and really liked the balance and length better.

Quality... his RWS is a beauty, there's no denying that, but for me I can't justify the extra money so I say again that the TF87 is an excellent value.

Safety... RWS wins here with the extra safety mechanism to keep the arm from closing while cocking. The TF87 catches and locks at the end of it's pull where the RWS has several catches as your cocking it.

Bluing.... RWS is much deeper and darker.

Overall the TF87 is a nice looking air rifle with extreme power. Heavy and long, but basically a big brother to the TF89.

darryl · « **Reply #127 on:** August 31, 2010, 03:07:30 PM »

Hi tworr,
Thanks for the perspective. I'm with you. The -87 is a beast for weight. I'm obviously building up my technique (and strength?) by cocking it. I agree the safety is not as comforting as that on the RWS-48 or my B-30 for that matter. But as an under lever design, the barrel is really easy to hold while loading a pellet. It is more awkward to hold the cocking arm of the side lever design. Do-able, but awkward. Further, as an owner of older generation Chinese rifles (B3-1 and a B4-2) I can say the quality of the TF-87 is miles beyond these rifles. It may not be up to European standards just yet, but the -87 instills confidence that Chinese rifles will continue to close the quality gap. After all, they have the electronics down pat (TVs, cell phones, the memory in your computers and most electronics we take for granted these days). There is a place for Chinese air rifles. I'm glad there is an 87 option. No telling how long I would have had to wait before I could afford an heirloom piece like a 48, 460, or 54. One day, maybe. but right now I'm a happy camper!

5 hours to go until I can use my loctite(d) Bug Buster on my honking big TF-87/22. tworr we are obviously manly men with HUGE NADS, tackling our beasts as we do.

Stay strong! Shoot hard!!

darryl
ps: I'm glad I put a light weight scope on my 87!

Oh and to pay $157.46 shipped is a great buy, imho!

tworr · « **Reply #128 on:** August 31, 2010, 06:04:41 PM »

LOL!!
I'm not going to lie. I was tired after shooting both guns.

Atchman2 · « **Reply #129 on:** August 31, 2010, 07:29:15 PM »

Just FYI, there is a feature on the TF website about how to properly install the scope stop. You may want to do that with these rifles. The 99s have a decent scope stop built into the gun. The newer ones have the new style scope stop. I'd rather have something that is more stable. I sheared the one off of that Hammerli Titan I had!

darryl · « **Reply #130 on:** August 31, 2010, 08:47:34 PM »

Oddly enough I just came up from taking off, then reinstalling my Bug Buster. The 87 moves it around like crazy. I put the scope stop back on, and it ate up an inch of relief even with the offset scope mount. So now I'm craning my neck a bit more (but it isn't too bad). I'm just worn out trying toget the scope to stop moving about so I could finally zero it out. The 87 is a true beast. Loctite, my @ss!

I'll try to zero it out again tomorrow. I've been chasing too many ghosts tonight.
darryl

tworr · « **Reply #131 on:** August 31, 2010, 10:26:41 PM »

And that's a one piece moving around like that?

darryl · « **Reply #132 on:** September 01, 2010, 07:02:40 AM »

yes tworr,
A one piece offset scope mount. The main problem with the design, in my opinion, is that it only uses two retaining bolts, not three or four. I now think I should have used the scope stop beforehand, but it takes up an inch of eye relief, and the Bug Buster has a three inch eye relief (hence the offset mount). Well I put the scope stop on and made do. I haven't fired the rifle since, but I'll throw some rounds out today and see what moves. Nice little plastic shock absorber on that scope mount. Hope it helps.
darryl

tworr · « **Reply #133 on:** September 01, 2010, 09:48:55 AM »

Would it be possible to tap the mount and drill two shallow holes in the rail of the 87 to help keep it from moving? Is there enough material there to do that without drilling through?

Todd

darryl · « **Reply #134 on:** September 01, 2010, 10:47:41 AM »

Quote from: Atchman2 on August 31, 2010, 07:29:15 PM

Just FYI, there is a feature on the TF website about how to properly install the scope stop. You may want to do that with these rifles. The 99s have a decent scope stop built into the gun. The newer ones have the new style scope stop. I'd rather have something that is more stable. I sheared the one off of that Hammerli Titan I had!

Atcnman, Do you have a link to that article? I went to the SAG site (Shanghai Air guns) which shows the AR series rifles (Tech Force), and the Industry Brand products. There is another site?

Todd (tworr?), the mount actually has two stop screws in it. I had them both turned in once I mounted it. I guess they are designed to sit in holes because all they did was to leave skid marks on the receiver when the mount was moving. I have no idea how deeply holes could be drilled. Perhaps I'll contact SAG to find out. So, I put the scope stop back on. It's a pain in the neck to lean in as much as I have to in order to see clearly. I have to pull the rifle tight to my shoulder for that.

I just ran eight pellets through the rifle after putting a bit more "ooomph!" on the scope stop. I need to zero the scope, but I was able to get five shots in a close group from a bench rest, and one into the group's outer edge while shooting free style from a standing position. Don't know how many free style shots I could do before the veins would be popping in my neck. Something to practice. The Beast is HEAVY and taxing. Also I want to ease the trigger pull just a bit more. I went too far once, and the let-off surprised me. Can't have that, but there's still a bit of room left to ease it off without the surprise firing. Maybe the scope should come off?
darryl
UPDATE: I wrote to SAG and asked how far I could drill into the receiver. It is halfway around the world so I'm sure I won't hear back from SAG until tomorrow at the earliest. I'll pas son what I find out. (this has been a GTA-News update!)

Atchman2 · « **Reply #135 on:** September 01, 2010, 11:41:20 AM »

Why aren't you calling Tech Force?

http://www.youtube.com/watch?v=2f8SzX0cQXE
	Small \| Large

How to mount the scope stop is in this video.

I use four bolt mounts on most of mine. You have to figure out though whether you want a high, medium or low. If you get low you may have to take the sights off of it.

They are similar to this one, though this one looks like it is a medium or high mount.

http://cgi.ebay.com/One-Piece-High-Power-Magnum-Airgun-Scope-Mount-Stop-Pin-/380264063336?pt=LH_DefaultDomain_0&hash=item5889812168

Here is the "low" version

http://cgi.ebay.com/One-Piece-Magnum-Airgun-Air-Rifle-Scope-Mount-AM4L-LOW-/380262614296?pt=LH_DefaultDomain_0&hash=item58896b0518

As far as drilling a hole, you are going to void your warranty. I had to drill a hole for my Hammerli Titan to try and keep the scope from moving. I'm not sure even if you drill and tap the hole for something to hold it, it may still shear off a bolt unless you got some sort of hardened one.

Though it is an oft repeated mantra on here, a tune would help to smooth out the recoil and perhaps help the scope to hold better. Good luck with the scope problems, you are going to need it. Those things frustrate me SO much.

tworr · « **Reply #136 on:** September 01, 2010, 11:49:22 AM »

I have one like you posted in the first link, but I've been looking hard at getting one of these.

http://www.airgundepot.com/leapers-11mm-dovetail-to-weaver-adapter.html

It only has two bolts and not the four to hold tight like the other links.

"As far as drilling a hole, you are going to void your warranty." -Atchman2

Ahh yes.. nm then.

Atchman2 · « **Reply #137 on:** September 01, 2010, 11:55:00 AM »

The problem with those type of adapters is THEN you need to buy some Weaver-Style rings!

I did buy one for my B21 though because they have that catch on the front that keeps the scope from moving. I'm going to have to go buy some low or medium weaver rings and re-mount the scope-again. The only ones I had at home were high mounts for my powder burner which needs them due to it having an external hammer.

If you are having serious problems, this is the one most folks swear will work. It has six bolts!

http://www.pyramydair.com/s/a/BKL_3_8_or_11mm_Dovetail_to_Weaver_Adapter_4_Long_Matte_Black/2923#productDescription

tworr · « **Reply #138 on:** September 01, 2010, 12:06:44 PM »

I do like the choice of being able to move the bases/mounts around to fit your needs.

I may try to buy one and add two additional bolts to see if it would work out.

This is my setup on my AR to get the eye relief I need. (I made the camo chaps out of brush cordura) I have a Bushnell Banner on this gun now.

Atchman2 · « **Reply #139 on:** September 01, 2010, 12:14:23 PM »

I think the hardest thing that folks fail to realize is that you really have to know your gun and what kind of scope works on it the best. The eye relief is a huge problem on some guns. I have a scope that I can't use but on a couple of air guns because of eye relief.

Whether you get a nice one-piece mount or the adapter and rings, that again is a function of how they fit on the air gun. It is also part my 10 rules of air guns-asking folks on the forum before you buy whether it will work or not. I've spent SO much money doing stupid things when I could just have bought the right thing the first time and been happy.