Haenel 312
Haenel 312.

Part 1
Part 2
Part 3
Part 4
Part 5

History of airguns

This report covers:

  • Warm up
  • RWS Hobby
  • Qiang Yuan Training pellets
  • RWS R10 Match Heavy
  • Shooting behavior
  • Cocking effort
  • Trigger pull
  • Summary

Today we look at the velocity the Haenel 312 has after my lube tune with Tune in a Tube. I will also test the other performance parameters except for accuracy, which gets its own test.

Warm up

I warmed up the powerplant with two shots before starting the chronograph. That’s my typical way with a spring gun and these days I try to do it with every gun other than a CO2 gun. Since CO2 cools the action it slows the airgun down as it shoots, so I never shoot a warm up shot.

I will report the velocity from the last velocity test in Part Two. I used all the same pellets in both tests. I also shot them in the same order.

RWS Hobby

First up was the RWS Hobby. I’ll show the results from the last test along with today’s test.

Shot…………Vel test 1……..Vel today
1……………….….791…………….…616
2……………….….757…………….…747
3……………….….685………………710
4…………………..833………………622
5…………………..617…………….…621
6…………………..633………………629
7…………………..638………………615
8…………………..656………………626
9…………………..635………………629
10………………….627………………623
11……………….…638………………636
12……………….…621………………620
13………………….636………………607

Oddly the rifle needed a few shots to settle down this time as well as the last time. That came from oiling the leather piston again. Even more oddly the rifle needed the same 13 shots to settle down both times.

In the first test the 312 was probably averaging somewhere in the low 630 f.p.s. region. In today’s test it probably averaged in the mid 620s. Call it a loss of 5-10 f.p.s. after using TIAT. That’s not bad, considering that 95 percent of the vibration is gone. There is a tiny twang on every shot that I will tolerate.

Qiang Yuan Training pellets

Next up were Qiang Yuan Training pellets. In the first test they averaged 579 f.p.s. with a spread of 17 f.p.s. Today they averaged 574 f.p.s. with a 34 f.p.s. spread from 559 to 593 f.p.s. That spread tells me the rifle hasn’t completely settled down yet, so the average could drop a little more as I shoot.

RWS R10 Match Heavy

In the first test R10 Match Heavy pellets averaged 583 f.p.s. with an 84 f.p.s. spread. I said that some oil was probably still burning off, but with that spread I didn’t think the R10 Match Heavy was suited to the 312. In today’s test the R10 Match Heavy averaged 573 f.p.s. with a 41 f.p.s. spread from 560 to 610 f.p.s. The 601 was the first shot and it was a detonation, so I still think this may not be the best pellet for the Haenel 312.

Find a Hawke Scope

Shooting behavior

I watched as the test progressed and the rifle did not vibrate more at the end than it did in the beginning. I believe the vibration level is firmly established. The rifle has lost perhaps 10 f.p.s. and has become much smoother shooting. Cocking is smooth, and without the ratchet sound. The ratchets just held the lever if you let it go or slipped during the cocking stroke. Once the rifle was fully cocked the ratchets were no longer in play and there is no button to release them when closing the sidelever. The anti-beartrap that works fine keeps the rifle from firing as long as the lever is open.

Cocking effort

In Part Two the rifle cocked with 32 pounds of force. Did lubricating the powerplant change that?

Yes, it did. The rifle now cocks with 24 pounds of effort. I think that’s a pretty dramatic reduction!

Trigger pull

In Part Two the trigger tested 4.1 ounces in stage one and released at 11.1 ounces After fiddling with the front adjustment screw stage one is now 6.9 ounces and stage two is 14.4 ounces. I guess it’s okay but it sure isn’t a target trigger.

Summary

Well, I got through putting the rifle back together and I quieted the powerplant on my Haenel 312. Now I am curious what, if anything, this has done to the potential for accuracy.

I’m not that concerned about the ratcheting sidelever, though if I discovered the way to set it right I would. As far as forgetting how the rifle comes apart, as reader Roamin Greco suggested, he’s right that the time to do it is now, but I spent a lot of time writing how this rifle goes together so I wouldn’t forget. I did that with the RWS 45 several years ago for the same reason.

I know I gave you two reports in a row, but once the rifle was together I just had to know. I suspect all of you did, too.