Beeman vs. Weihrauch
 

I thought I read somewhere that the Weihrauch HW90 is the same gun as the Beeman RX-2 and, to look at the specs, it appears that that is true. Another interesting (Beeman) gun is that the Beeman P17 appears to simply be a cheap version of the Beeman P3. Anyone have an additional info on Beeman and who makes their guns? I've been a fan of Beeman for a while - I own the P3 and the R7 in .20 cal.

I recently bought the Wiehrauch HW90 instead of the RX-2. The Rx-2 has a nicer stock but I wasn't interested in paying an additional $200 for the wood or the name after what I read. All I wanted was a more powerful rifle than the R7...and it IS! Also not used to the 46 lb. cocking effort but I'll get used to that.

RX2 and HW 90
 

biggest difference is the HW version does not have the laminate stock which can be good as its heavier stock and lets face it the HW90 don't need more heft tom carry around. I think you will find out a slight detune of the ram in the HW90 will make scopes and life in general with the HW 90 much easier.

What cal did ya get in the 90??

I got a .177 although a 20 or 22 would have been fine. After shooting a few rounds thru it I can see how a scope would help my shooting accuracy. This gun is the most powerful I've experienced.

that's huge power plant for a .177 hope ya found some heavy .177 to use

It is THAT, Critter! I don't have any heavy pellets yet but I'll put some in my next order if they're available. I shot targets with some of the 7.5 gr. pellets that I had on hand - they were lightning fast, accurate and shot a hole through my 3/8" plywood back stop. (I had an old phone book behind that so the rounds "didn't get away from me."

You mentioned "detune of the ram" in your previous post. Is it possible to do that with a gas piston gun? Any help on how if I wanted to do that?

HW90 has a fill plug for ram .....dont shoots lights
 

STOP shooting light pellets you will overheat and ruin the seal

unless you lower the power via lower ram pressures the HW90 is too much power and will break scopes, melt piston seals and generally eat it self shooting light pellets at full power and pressure on ram


you need a shock pump and a fill fitting to refill the ram if you lower it too much

http://www.bestfittings.co.uk/shopexd.asp?id=638

http://www.bestfittings.co.uk/shopexd.asp?id=634

example but its entire ram fill kit

if ya can find a fill probe a shock pump can be set up to fill HW90

http://www.bestfittings.co.uk/images...01_ALT1LRG.jpg


US source for fill fitting

https://www.rapidairweapons.com/xcar...cat=255&page=1

https://www.rapidairweapons.com/xcar...ype=P&id=17629

Critter99: "................hope ya found some heavy .177 to use"

I think I'm catching on to the potential mess I have on my hands. Thanks for taking the time to post that info for me.

Since you mentioned the above, if I shoot heavier pellets can I get by with not having to go through lowering the gas pressure? For example, I've found some H&N Magnum Rabbit II pellets that are 15.74 grains - would that keep me safe from having my gun " relatively eat itself?"

yes but ...
 

[QUOTE=jblackfish;1200]Critter99: "................hope ya found some heavy .177 to use"

I think I'm catching on to the potential mess I have on my hands. Thanks for taking the time to post that info for me.

Since you mentioned the above, if I shoot heavier pellets can I get by with not having to go through lowering the gas pressure? For example, I've found some H&N Magnum Rabbit II pellets that are 15.74 grains - would that keep me safe from having my gun " relatively eat itself?"[/QUOTE


never heard anybody getting any good groups outta them pellets they worth a try your barrel mlight just like em

HN and Crosman makes some 10.something grain .177 i would shoot nothing lighter than them ina full power HW90

[QUOTE=critter99;1202]................Thanks a million for all your help and advice, Critter. I really appreciate it! FYI, I'm going to order two pellets to try: the Eun Jin 16.1 gr. and the JSB Exact Monster 13.4 gr - the JSB is back ordered so it may be a while before I get the order. (I decided not to order the H&N Magnum - they got bad reviews for being too large and hard to fit in the chamber.)

The rabbits are horrible pellets. Least in every gun I tried em in. EG's pretty much worked ok in korean guns but not so well in others for me. They are terribly dirty pellets that have a head size thats made for korean barrels.

Well, I changed the order - took the Eun Jin 16.1 gr. outa there and added some Crossman 10.5 gr. and Beeman 11.57 gr. We'll see how it goes. Thanks again.

hmmmm
 

ya new pellet stash show up yet??

No pellets yet. It's gonna be delayed because one of the items - JSB Exact Monster - is on back order and I chose to ship complete order rather than pay two shipping costs. No idea when it'll show up but probably after Thanksgiving.

What do you think of me putting a scope or red dot on the HW90? Would it be too rough (vibration) on that sort of thing? I think reviews of the gun say they're rough on optics.

Hw90
 

HW90 needs a good scope mount and springer rated scope 4 sure... I like BKL260-D7 droop mounts for 1 inch scopes and a Modified RWS lockdown droop mount with extra clamp screws added and no recoil stop pins used ...see the extra clamp screws??

http://i941.photobucket.com/albums/a...112-183007.jpg

http://new-cdn.pyramydair.com/images..._d_200x150.jpg

http://www.pyramydair.com/m/RWS-Acce.../page_1/cat_51

I also line the rings with this tape to stop slippage

http://i941.photobucket.com/albums/a...psfc9aac64.jpg

Sportsmatch also makes a Dampa Mount thats is for high power springers ...its sorta pricey

http://www.precisionairgunsandsuppli...pamount-2T.gif

http://www.precisionairgunsandsuppli...theodampamount


quality drooped mount and a good scope kept in center 1/3 of both adjustment ranges and a Ram not over filled for max power and ya will be fine

Thanks a million for the info, Critter. I really appreciate the specific references. I'm going to look into this soon - this gun could really benefit from a scope. I've got a birthday coming up and Christmas too - maybe I can work in the mounting hardware and scope. ;)

UPDATE: I just noticed that the Theoben Dampa Mount shows 'no longer available" - http://www.precisionairgunsandsuppli...theodampamount - that sounds like a permanent statement rather than a temporary situation to me.

http://www.sportsmatch-uk.com/1-diam...t-arrestor-pin

they still make them just hard to find in US right now :(

I see. Looks like the DM60 is the one for me to look for - I compared the pic on the Precision Air Guns with the Sportsmatch (UK) site to and they look the same. I'm going to try for that one assuming it's the better choice than the RMS one on Pyramyd.

my friend has a .20 cal RX2 (same as HW90) he was the pne that originated the modified RWS lockdown for usage with no stop pins and 30MM dia scope tube ...

I might add he is a ME type by profession so I trust his choices on clamping forces increases with extra screws

I've ordered the RWS mount. I can put it on my R7 if I don't want to use it on my HW90 and the price is easy enough on the budget that it's worth trying - I even got a little discount (if you can call 10% a discount.) A buck's a buck I guess - thanks for the extra info - you sold me.

Critter, I've gotten the RWS mount for my HW90 as well as some heavier pellets - 10+ to 13+ grains. Unfortunately I haven't had a chance to get out and shoot and I really can't shoot much here at home. I haven't even mounted the scope mount yet, much less put a scope on it but I probably will soon.

I'm thinking of ordering one of the connectors and a pump so that if I let out to much pressure I can get it back up to pressure. I do have a chronograph so I can measure the pressure by using that before I start tinkering.

The question that I have is, do you have any advice or thoughts BEFORE I order this stuff? I'm trying not to jump the gun or go too fast on this one. I'm thinking of ordering this - http://www.bestfittings.co.uk/shopexd.asp?id=638 - and be done with it. It's pricey but then so was the gun and I'm in no particular hurry at this point. Whaddaya think?

I am not an expert on HW 90s but ....
 

I have observed a small drop in power 1-2 fpe can totally change the feel of a rifle nd make it shoot easier ...better a 17-20 FPE hit every time than a high power 24 FPE miss

It work on spring plants so a tunable GAS RAM sure does make me jealous since ya can vary the level so easy no tear down

I have bought 500cc bottles from Best Fittings they ship fast to use on my .25 Mrod conversion

Any PCP hand pump would work with the adapter set up to fit on ....but if ya dont do PCP a hand pump would be useless and the slim set would rock for ease.


I would do some research on needed real world ram pressures as ya can get some shock pumps quite inexpensively and I am sure some modelsl do the right pressure range

Have you added the extra clamp screws to the RWS lockdown yet ??? Replace all the screws with a length that completely use all the thread depth available in mount base mine are about 2 threads longer on back side sticking out when tight

The tape is ABSOLUTELY NEEDED to line the RWS tube clamps

Thanks for the insight, Critter. I have not added extra length clamp screws to the RWS. Any help on where to find extra length screws? I will definitely use the friction tape on the inside of the mount rings.

was a common metric diameter and pitch any old time hardware, good fastener company, or any good ACE shpuld have the right ones

I've got a good ACE here and an old fashion hardware too - I'll check it out. Thx.

Did you find any ? Did it work for you jblackfish?