What does Diana 34 compare to in power?

Not sure about the others you mention. My 34 specs.

It's almost like the HW95 Beeman R9 Its probably a little faster than the HWs but the HWs are easier to shoot and not as loud.

HW95 is slower. In .177 an HW95 runs 890-920fps typically. The HW is better made. They had a 34 classic with all metal I think at AoA I think. I would be interested in that. Can't speak for the .22 cal in 34M. I've only had the .177

With average weight pellets it will shoot at about 14 fpe. That's in the 850 fps range. To be honest that's just about ideal for a small game rifle in .177. This is because most pellets made for field use shoot more accurately around that speed. The Model 34 is an exceptional value at its price point. There are plenty of folks here who own one. I highly recommend them as a first rifle.

Faster out of the box in .177cal than an HW95 but not faster after tuning. I have had 750fps with Vortek tune and seal in an HW95 22cal. I have an HW85 22cal that I am getting ready to put a Vortek kit and seal in it and I bet money it will do at least 750 with a 14.3 grain pellet and probably 770 fps. That barrel on the HW85 is just as long as the RWS 34. I have never seen a tuned 34 or otherwise attain that speed. 

There really isn't much point putting a moderator on a spring rifle. I just put one on a model 36 which is the same power plant as the 34. I don't use it. There isn't enough difference to make it worth while. If you are that noise sensitive stick to a PCP with a moderator.

I should add a heavier pellet will usually quiet down a spring rifle.

Can a moderator be fitted on a 34?

Click to expand...

The new 34's come with a threaded barrel for a moderator.

I have a HW50 with a DonnyFl tanto on it and it does quiet it down a lot.

It may not sound much quieter to the shooter because of the mechanical noise, but if you get in front of the gun you can tell how quiet it is.

I've had two T06 versions.

.177 cal. 16.1 ft lbs

.22 cal. 17.3 ft lbs