Posts Tagged ‘Air Venturi Pro CQBBs’
by Tom Gaylord, a.k.a. B.B. Pelletier
Today is the day we adjust the BAXS in the Tanfoglio Gold Custom CO2 blowback airsoft kit gun to see how it affects the gun’s ablity to group. Remember, the BAXS is another form of hop-up, which is the generic name for a rubber bumper that puts a backspin on the airsoft BB as it exits the bore. That causes the BB to fly straighter and farther than it would if it were not spinning, or if it were allowed to spin randomly.
So, the first thing to do is to get to the BAXS adjustment wheel, which is located deep inside the gun’s slide. The gun must be partially disassembled, and therein lies a problem. The manual is poorly written and illustrated with confusing small photos that don’t depict what you actually must do.
To remove the slide of this pistol, the slide stop, or what the manual called the slide stopper, must first be removed. There are 2 different things that must be done precisely to get the slide stop out, and the manual doesn’t cover them. First, the slide has to be pushed back only about a quarter inch to release the slide stop. If you see the rear of the barrel dive down as you push the slide back, it’s moved too far. Second, there’s a very small clearance hole for the large end of the slide stop on the left side of the frame. Once again, pushing the slide too far back will cause the stop to pass this clearance hole, and the slide stop cannot be removed from the gun.
Of course, you don’t find out any of this until the slide is off the gun, which is too late. And the instructions are one sentence long. If you don’t know how to remove the slide, the instructions will not help you!
Once the slide is off, the BAXS adjustment wheel is located on the underside of the slide and barrel assembly. It’s a small plastic wheel that’s turned by a small thin blade, such as a tiny screwdriver. A pin in the wheel limits its travel to less than half a turn, so the amount of adjustment is small. But if the gun was designed right and manufactured carefully, it should be enough to make a difference.
I noted where the adjustment wheel was when the gun was disassembled. It was close to one end, so I moved it to the other extreme end. If there was going to be a difference, I wanted it to be immediate and visible. And it was — as I will now show you.
I decided to begin with the Air Venturi Pro CQBBs that weigh 0.25 grams because they were the most accurate in the previous test. When you adjust something as finicky as hop-up, stick to one BB whose performance you know. To do otherwise would just waste your time because you would never know if it was the particular BB or the gun’s adjustment that was right or wrong.
I shot a lot of targets in this test, but I’m not going to show you all of them. For the first couple, I was just getting the BBs back on target at 10 meters. The BAXS adjustment moved the point of impact several inches higher than it was the last time. But as I adjusted the dot sight and brought them back down onto the paper, I noticed something. They all tended to be strung out vertically, but were very tight horizontally. And each target, of 5 that I shot, had 4 BBs tight together and one that was apart from the group — a flier. Only there was no reason for the flier that I could see.
So, there were 4 BBs grouped together and the fifth BB would be more than one inch away from the main group. I adjusted the BAXS a couple times to correct this, but it persisted with this BB.
There were 3 more groups just like these, and then I decided to switch BBs. The next BB I tried was the 0.20-gram Marui Black that Pyramyd Air does not stock. Being lighter, these BBs went faster than the others. The first group was really tight.
Alas, I was unable to repeat that group. The next group was 10 Marui BBs instead of 5, and this one spread out to 2.041 inches.
I tried several more times to shoot good 5-shot groups with the Maruis, but no luck. They all turned out like the 10-shot group shown above.
Let sanity prevail
This gun was never intended to be a 10-meter pistol. It’s supposed to be a rapid-fire action pistol that can compete in action target matches. Those targets are much larger than the ones seen here, and the BBs only have to hit a large center area to score their highest. I think they can do that without a problem.
What I’ve just shown you is how an adjustable hop-up, or BAXS in this instance, affects the grouping ability of an airsoft gun. If you compare these groups to those fired in the previous test, you’ll see how much improvement was achieved.
The Tanfoglio Gold Custom Eric Grauffel CO2 blowback airsoft pistol is a high-end, factory-made competition gun. It has a wonderful trigger, great blowback action and is very capable of competing, as long as a quality dot sight is mounted. For coming right out of the box at this level of performance, I doubt you can find anything better.
Just remember, the factory owner’s manual is spotty and somewhat misleading. This pistol takes some getting used to before it can perform at its best, and that comes with time and use.
by Tom Gaylord, a.k.a. B.B. Pelletier
Today is accuracy day for the Tanfoglio Gold Custom CO2 blowback airsoft kit gun, but it’s just the first of many tests. An airsoft gun with adjustable Hop-up, or BAXS in this case, has to be adjusted to shoot its best. I’ve never adjusted a gun with BAXS, but I’ve adjusted plenty of them with Hop-up and that is how it always happens. The gun never shoots its best right out of the box. I’m assuming the BAXS is the same.
All I did today was find out which BBs are worth continuing with and which aren’t. As it turned out, I got good results with several 0.20-gram BBs, which is what the manufacturer recommends for this gun. I also did well with one 0.25-gram BB.
I’ll warn you right now, the targets you’re about to see are not very impressive. They look terrible, in fact. If you’re used to good groups from pellet guns, these are going to seem hopeless. But they do show small differences between the good BBs and those that aren’t worth pursuing, and that was all I wanted to do today.
I shot off a bag rest with the butt of the gun (the bottom of the magazine well) rested against the bag. I also tried holding it ahead of the bag and just resting my arms on the bag, but it moved around too much. Maybe next time I’ll play with some different holds.
I shot only 5-shot groups today because I was testing a large number of different BBs. In all, I tested over 10 different brands, but only the most promising will be shown here.
Before I get to that, however, there was another problem not related to the gun. The Swiss Arms red dot sight that was bundled with the pistol quit working suddenly during the first session. It wasn’t the battery because that’s still good. So, I dismounted it and installed a Walther Competition II Top Point red dot sight that I got from Pyramyd Air for testing; but some funny-bunny at the factory had left the sight turned to high power, and the battery was dead. I replaced it with a fresh battery but the sight failed to respond. So — two red dot sights out of the running even before we start. That was what ticked me off yesterday and caused the rewriting of my blog.
Fortunately, I have an older Tasco Pro Point red dot sight that has functioned perfectly on many airguns over the past 15 years. That one went on for this test, and everything was good again.
Sight-in was a bit frantic because I unknowingly chose the least accurate 0.20 BB for the job. The gun doesn’t like the Air Venturi Pro CQBBs that weigh 0.20-grams. It took me about 10 shots to get sort of on target, but it wasn’t until I switched ammo that I found out what was happening. More on that in a moment, now for the quick rundown.
This pistol hates 0.12-gram BBs. They couldn’t even stay on the trap at 10 meters, and I was using the UTG Accushot Pellet and BB trap. Forget staying on target! This things were hitting the backer board that was behind the trap. Fortunately, I expected something like that, so I didn’t waste much time. BBs this light are usually good only in lower-powered spring-piston guns.
The pistol also performs only average with the 0.28-gram BBs. Though I only tried one brand, the TSD Tactical 0.28-gram BBs, I can tell from experience that this BB is too heavy for the pistol.
That leaves 0.25-gram and 0.20-gram BBs. The gun shot the best group with Air Venturi Pro CQBBs 0.25-gram BBs, but it was 2.864 inches for 5 shots. See what I mean about not getting too excited?
The second-best group of 5 shots was a 0.20-gram Marui Black BB that Pyramyd Air doesn’t carry. Five of those went into 2.875 inches at 10 meters, which is really too close to call. The round BBs tear holes that are indistinct and measurement may be off by a lot. Fortunately, the pictures don’t lie.
But it was another 0.20-gram BB, the TSD Stealth that’s apparently no longer made that tipped the scales on this day. The first group I shot was spread out wide, but it was just one BB that did it. The other four were in 1.809 inches. I was so encouraged that I shot a second group; and, again, 4 BBs went into 2.229 inches and the fifth shot opened the group several more inches. I think this might be the most accurate BB after the BAXS gets adjusted, or at least 0.20-gram BBs of some other brand might turn out to be the best. If not, the 0.25-gram Air Venturi BBs might get better with the adjustment.
Don’t get discouraged!
My time with airsoft has taught me to first look for the best BB, and then spend more time adjusting the Hop-up to maximize its potential. That’s what lies ahead of us for this pistol. I won’t guarantee the gun will be much more accurate than this; but if past experience holds true, it will be!
Believe me, I do understand that this is not a target pistol. But to win as a competition gun, it has to place its shots close together. IPSC for airsoft doesn’t shoot as far as 10 meters, so this test is extreme, but it’s also quite good at showing what the gun is capable of.
The gun’s recoil is sharp when you’re aiming carefully. And the trigger that I loved before is still preforming well. All in all, I’m a little disappointed that I can’t show you better groups than these; but if the BAXS works as it should, I should be able to reduce these by a lot.