JSB Match Exact Express Diabolo pellets

Crosman MTR77NP scoped air rifle Beeman R8 group Falcon pellets 25 yards

Crosman MTR77NP scoped air rifle: Part 4

by Tom Gaylord (B.B. Pelletier) December 3, 2013

by Tom Gaylord, a.k.a. B.B. Pelletier Part 1 Part 2 Part 3 Crosman MTR77NP air rifle Today, I’m testing the Crosman MTR77NP scoped air rifle for accuracy at 25 yards. This is going to be a very different accuracy report, for I have no targets…

Accessories, Ammo, Competition, Education / Training, Flashlights and Optics, Spring 76

Crosman MTR77NP scoped air rifle Premier lite group

Crosman MTR77NP scoped air rifle: Part 3

by Tom Gaylord (B.B. Pelletier) November 19, 2013

by Tom Gaylord, a.k.a. B.B. Pelletier Part 1 Part 2 Crosman MTR77NP air rifle Today, we’ll look at the first of 2 accuracy tests planned for the Crosman MTR77NP scoped air rifle. As you know, this rifle has no open sights; so, the first thing…

Accessories, Ammo, Competition, Education / Training, Flashlights and Optics, Spring 33

Benjamin Marauder 5 shots 25 tards Superdomes

Benjamin Marauder PCP .177-caliber air rifle: Part 3

by Tom Gaylord (B.B. Pelletier) July 4, 2013

by Tom Gaylord, a.k.a. B.B. Pelletier Part 1 Part 2 Secrets of loading the Benjamin Marauder magazine Benjamin Marauder Today, I’ll begin a look at accuracy for the Benjamin Marauder precharged pneumatic air rifle. If the Marauder was a normal PCP, this would be one…

Accessories, Ammo, Competition, Education / Training, PCP 63

JSB Exact Express group 25 yards flush-seated

Walther LGV Olympia field test: Part 3

by Tom Gaylord (B.B. Pelletier) May 30, 2013

by Tom Gaylord, a.k.a. B.B. Pelletier Part 1 Part 2 Walther LGV Olympia was a top-quality 10-meter target rifle from the 1970s. It’s play time again, today, for this is the day we shoot the Walther LGV Olympia target rifle at 25 yards in preparation…

Accessories, Ammo, Competition, Education / Training, Spring 33

by Tom Gaylord, a.k.a. B.B. Pelletier Part 1 Part 2 Part 3 10-22-10-01-Walther-LGV-Olympia Walther LGV Olympia was a top-quality 10 meter target rifle from the 1970s. The weather cooperated yesterday and gave me a perfect day at the range, so I was able to shoot the Walther LGV Olympia at 50 yards. I also shot the Talon SS with the 1:22" twist barrel before the wind kicked up and stopped all airgun shooting, so I'm on the way to the final test of the different twist rates. I knew the LGV Olympia was never going to hit the target, no matter what I did to the rear sight, so I placed two 3-inch bulls on a 2-foot by 4-foot piece of target paper and used them for sighting. The shots landed far below these bulls, of course. How far is an eye-opener, so I took a picture of it so you could see. 06-22-13-01-Walther-LGV-Olympia-50-yard-groups The pellets landed about 18-inches below the aim point at 50 yards. The sights had the pellets hitting the center of the target at 25 yards, so this is how far they drop in the second 25 yards. Notice that the center of the group of JSB Exact Jumbos on the right is about 2 inches lower than the center of the RWS Superdomes on the left. I fully expected this to happen, so I stapled the bullseye targets to a huge piece of target paper, so the pellet holes would show. Knowing they could well go to the same point I used two separate bullseyes as aim point, and from the picture you can see that was a good idea. I selected the two best pellets from the 25-yard test for this. They were the JSB Exact Heavy, which was the best pellet at 25 yards, and the RWS Superdome that took second place. I shot off a sandbag with the rifle rested on the flat of my hand in the classic artillery hold. The flight time of both pellets was extreme. Although I couldn't see them in flight, the flight time told me they were dropping rapidly as they moved downrange. JSB Exact Heavy The first pellet I tried was the 10.34-grain JSB Exact Heavy. It is far too heavy for the LGV Olympia powerplant, but in the 25-yard test 10 Exact Jumbos went into a group that measures 0.354-inches between centers. So a novice might expect that since the range was doubled, the group size would be as well. That would give us something like a 0.70-inch group for this pellet. 06-22-13-02-Walther-LGV-Olympia-50-yard-group-with-JSB-Exact-Heavy The 50-yard group was larger than expected. Ten JSB Exact heavys went into 2.285-inches What I actually got was 2.283-inches between the centers of the two pellets that were farthest apart. Thats roughly 6 times larger than the 25-yard group and more than 3 times the expected size, if you simply try to extrapolate from 25 yards to 50 yards. This is why you have to be careful when making generalizations about accuracy. The shooting conditions were perfect for this test. There was no breeze to speak of and if I felt something I always waited it out. I also had no shots that were called as anything but perfect. So what you see here represents the best I was able to do with the LGV Olympia at 50 yards with this JSB pellet. RWS Superdome The second-best pellet at 25 yards was the RWS Superdome that gave me a 10-shot group measuring 0.695 inches. Multiply that by 6 and you get an anticipated group size of 4.17-inches. I'm doing that because of what happened with the JSB Exact Jumbos. 06-22-13-03-Walther-LGV-Olympia-50-yard-group-with-RWS-Superdomes RWS Superdomes opened up even more than JSB Exact Jumbos. This group measures 3.062-inches between centers. What Superdomes actually did was put 10 shots into 3.062-inches -- so it was better than predicted (if you use the 6-times predictor) but was certainly much larger than simply double the 25-yard group size. The lesson here is that group size does not simply increase linearly with distance. We hear that all the time. If a certain gun shoots 1-inch at 100 yards we say it should shoot 2 inches at 200 yards. I'm saying that rarely happens. Usually the group will open faster as the distance increases. Not always, but usually. Evaluation The Walther LGV Olympia is a remarkable airgun. Out to 25 yards it is extremely accurate, plus it is very easy to cock and quiet to shoot. Beyond 25 yards, though, the LGV Olympia quickly gets outside its comfort zone. There just isn't enough power pushing the pellet to hold the group size to what you might expect. These results are consistent with the results I got when shooting the FWB 300S at 50 yards. Installing a scope helped, but only marginally. So I'm not going to put a scope on this rifle. I'm satisfied with this test and that's as far as I'm going in this test.

Walther LGV Olympia field test: Part 2

by Tom Gaylord (B.B. Pelletier) May 23, 2013

by Tom Gaylord, a.k.a. B.B. Pelletier Part 1 Walther LGV Olympia was a top-quality 10 meter target rifle from the 1970s. Don’t get confused. The title of this blog is the Walther LGV Olympia field test, but the first part was titled, We interrupt our…

Ammo, Education / Training, Spring 63

Tag: JSB Match Exact Express Diabolo pellets

JSB Match Exact Express Diabolo pellets

Crosman MTR77NP scoped air rifle: Part 4

Crosman MTR77NP scoped air rifle: Part 3

Benjamin Marauder PCP .177-caliber air rifle: Part 3

Walther LGV Olympia field test: Part 3

Walther LGV Olympia field test: Part 2

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Think inside the box

Marksman model 70 breakbarrel air rifle: Part 12

Part 1

RAW HM-1000X precharged air rifle: Part 5

Airgun History

Air Archery CO2 Rifle

Tag: JSB Match Exact Express Diabolo pellets

JSB Match Exact Express Diabolo pellets

Crosman MTR77NP scoped air rifle: Part 4

Crosman MTR77NP scoped air rifle: Part 3

Benjamin Marauder PCP .177-caliber air rifle: Part 3

Walther LGV Olympia field test: Part 3

Walther LGV Olympia field test: Part 2

Categories

Latest posts

Think inside the box

Marksman model 70 breakbarrel air rifle: Part 12

Part 1

RAW HM-1000X precharged air rifle: Part 5

Airgun History

Air Archery CO2 Rifle

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