Crosman DPMS SBR full-auto BB gun: Part 1

by Tom Gaylord
Writing as B.B. Pelletier

Crosman DPMS SBR
Crosman’s DPMS SBR full auto BB gun.

This report covers:

  • What is it?
  • Watch the video
  • The gun
  • Blowback
  • Controls
  • Disassembly
  • Stock
  • Forearm
  • Loading
  • Shot count
  • Bolt holdopen
  • Sights
  • Summary

Today we begin looking at the Crosman DPMS SBR full-auto BB gun. First — the acronyms. DPMS = Defense Procurement Manufacturing Services. WHAT??? It’s a shop that was initially in Osseo, Minnesota and opened in 1985. It started manufacturing parts for military weapons like the M16. It’s now part of a larger conglomerate that’s located in Huntsville, Alabama. SBR = Short Barrel Rifle. Another name for a carbine, and, in this case, the rifle that was shortened was already a carbine.

What is it?

The DPMS SBR is Crosman’s select-fire BB gun that shoots 25 BBs per magazine. Select fire means both full and semiautomatic fire are available via the conventional M16 selector switch. Gun bashers will tell you that AR-15s are automatic, but in fact that is incorrect. Civilians in the U.S. may not purchase full auto firearms without a lengthy process that vets the owner, tying the gun to him by serial number, and costs $200 per firearm so registered. AR-15s are semiautomatic, only, so a selector switch applies to the full auto military platform, only. read more


Umarex Trevox air pistol: Part 3

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2

Umarex Trevox air pistol
The Umarex Trevox is a single shot breakbarrel gas spring air pistol.

This report covers:

  • The test
  • Trigger
  • JSB Exact 10.34-grain
  • Sig Match Ballistic Alloy
  • RWS Hobby
  • Last test
  • Sights
  • Evaluation
  • Summary

Today we test the accuracy of the new Umarex Trevox air pistol. I like this pistol so far, so if it is accurate it is a best buy.

The test

I shot off a sandbag rest from 10 meters. I rested the bottom of the grip on the bag for most of the test to take up the pistol’s weight, though I did try it completely handheld. I will describe both holds as we go.

Trigger

The trigger pull reared its ugly head during this test. The pull is long and stacks up toward the end. I think the pull opened some of the groups a little. read more


Hy Score 816/Diana model 6 pistol: Part 1

by Tom Gaylord
Writing as B.B. Pelletier

A history of airguns

Hy Score 816
This Hy Score 816 is a Diana model 6 recoilless target pistol. This is the photo from the auction.

This report covers:

  • The deal
  • Almost a PCP!
  • Sights
  • Model 6 variations
  • My pistol
  • Hold
  • Size
  • Power
  • Cocking
  • Trigger
  • The real world

It’s Friday and you now know what pistol shot that small group this week. It was a Hy Score 816 that’s actually a Diana model 6 target pistol. I had told you that I won this auction on Gun Broker. In fact, let’s look at what I said.

A seller had listed a Hy Score model 816 pistol for $119.99. Now, if you have listened to reader ChrisUSA, you have purchased your Blue Book of Airguns that has a manufacturer cross-reference table in the back. Hy Score was based in Brooklyn and did manufacture some airguns in the 1940s through the ’60s. They also bought airguns made by other companies that were marked with their name — not unlike business is done today. One company they bought from was Diana. I search Hy Score listings frequently, hoping to stumble across a model 807 rifle which is really — quick, someone tell me! That’s right, it’s a Diana model 27. read more


Hatsan 135 QE Vortex .30-caliber pellet rifle: Part 3

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2

Hatsan 135 30 caliber rifle
Hatsan’s .30 caliber 135 QE Vortex is a large breakbarrel — both in size and caliber.

This report covers:

  • The test
  • Sight-in
  • JSB Exact 44.75 grain
  • JSB Exact 50.15-grain
  • Predator Polymag
  • Next
  • JSB domes at 25 yards
  • Predator Polymags
  • Polymags with the tips removed
  • Popeye?
  • What’s next?
  • Summary

Time for me to bend the bow of Ulysses and see what it can do. Today I have a slightly different accuracy test for you.

The test

I tested the rifle at both 10 meters and 25 yards. I shot 5-shot groups today because this rifle is just too hard for me to cock. A tired BB is a sloppy BB. All shooting was off a sandbag rest in the normal fashion and I used the artillery hold, both because I knew the rifle would be twitchy, something several readers confirmed.

Sight-in

Sight-in took five shots. As it came from the package the rifle was shooting high and right. The open sights have scales to tell you where they are and I found the windage scale most helpful, getting on target. read more


Benjamin 700 multi-pump repeater: Part 3

by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2

A history of airguns

Benjamin 700
Benjamin 700 repeating BB gun.

This report covers:

  • Wrong ammunition
  • Two big clues
  • Filling the BB gun
  • The test
  • Sight-in with Daisy BBs
  • Pressure too high
  • Hornady Black Diamonds
  • Getting used to the gun
  • Daisy Match Grade shot
  • Bottom line

Today we learn how accurate the Benjamin 700 multi-pump repeating BB gun is. And we will learn a lot more than that. Let’s go!

Wrong ammunition

Some of you know how I harp on calling a BB gun a BB caliber and NOT .177/4.5mm. Because it’s not! A steel BBs is 0.171- to 0.1735-inches in diameter. It may not matter to people buying one BB gun at a discount store, but to someone like me who has to shoot oddball new and old airguns from all over the world, it makes a big difference.

The Benjamin promotional pamphlet from the 1930s says these guns (the model 600, 700 and 300) use steel Air Rifle Shot of 0.175-inches in diameter. There’s just one problem with that. As far as I can tell, nobody ever made steel Air Rifle Shot in anything but 0.171-0.1735-inches. I wondered if it was possible that the Benjamin writers of that pamphlet were as cavalier back in the 1930s as BB manufacturers are today. Did they really want us to use Air Rifle Shot that is 0.171 to 0.1735-inches in diameter and not LEAD Air Rifle Shot that is 0.175-inches? They did emphasize not using lead balls in these guns. read more


Ten-meter accuracy test — Daisy 499 versus Haenel 310

by Tom Gaylord
Writing as B.B. Pelletier

A history of airguns

This report covers:

  • Another failure!
  • The test
  • 499
  • Discussion 1
  • Haenel 310
  • Discussion 2
  • CZ75 P-07 Duty accuracy at 10 meters
  • Summary

I put today’s report in the historical section because it relates to both the Haenel 310 and the Diana model 30 that we tested recently. In the comments to the Diana 30 test the question was raised about which would be more accurate at 10 meters — the Daisy 499 Challenger or the Haenel model 310. I said I thought the 310 would beat the 499 because it is rifled, but several readers wanted to see. So, today we see.

Another failure!

Before I get to the results of today’s test, let me fill you in on another irony. I was going to test the accuracy of the Benjamin 700 today and the gun jammed as I started to shoot. This one has a happy ending, because I got it unjammed and working again, but that was after today’s test. There is more sweet irony in the story that unfolded there, but I will hold off on that until we get to the report. read more


Diana model 30 gallery gun: Part 2

by Tom Gaylord
Writing as B.B. Pelletier

Diana model 30 gallery gun
Diana model 30 gallery gun.

Part 1

A history of airguns

This report covers:

  • Cocks hard!
  • Description
  • Trigger
  • Safety
  • Sights
  • Potential accuracy
  • Why was this airgun so hard to get in the U.S.?
  • The end — or maybe not!

You’ve had a weekend to contemplate this gallery gun and today I will finish describing it and talking about its basics.

Cocks hard!

All of these bolt-action repeaters cock really hard, and the Diana model 30 is no exception. The piston can only move a short distance, so the mainspring has to be stiff enough to give the ball a good push. Even so I wouldn’t look for much velocity. My experience with a Haenel 310 tells me this one will shoot 350 f.p.s. or less. We will see in the next report and I will also measure the cocking effort.

Description

The rifle is 42-3/4-inches long, overall. The barrel is 16.9-inches of that. The pull measures 13-1/2 inches. The rifle weighs 7 lbs. 6 oz. read more