Category Archives: CO2

CO2 Category

Sig Sauer P320 M17 CO2 pellet pistol: Part 3

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by Tom Gaylord
Writing as B.B. Pelletier

Sig M17 pellet pistol
Sig Sauer P320 M17 pellet pistol.

Part 1
Part 2

This report covers:

  • The test
  • Group 2
  • Remember what we are doing
  • Lead pellets
  • Back to the test
  • Two hands wins!
  • Other pellets
  • Let’s try BBs
  • 4.55mm lead balls
  • Wild shots explained?
  • Discussion
  • Summary

Today I shoot the Sig P320 M17 pellet pistol for accuracy. I learned a lot in today’s test, so this should be interesting.

The test

I am testing both pellets and BBs (plus lead balls), so I will test at two different distances. I will begin with pellets at 10 meters. I knew that Sig Match Ballistic Alloy pellets would be accurate, so I started with them.

I started the test by shooting off a sandbag rest. I rested the bottom of the gun’s grip on the bag and I also tried holding the gun with my hands resting on the bag. It turned out that resting the pistol directly on the bag worked the best, but I had to shoot a second group to learn that. read more

Sig Sauer P320 M17 CO2 pellet pistol: Part 3

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by Tom Gaylord
Writing as B.B. Pelletier

Sig M17 pellet pistol
Sig Sauer P320 M17 pellet pistol.

Part 1
Part 2

This report covers:

  • Correction
  • Sig wonders why we want to disassemble the gun
  • The test
  • Sig Match Ballistic Alloy
  • Rifled barrel
  • Magazine gas loss
  • Air Arms Falcon pellets
  • Crux Ballistic Alloy
  • Blowback
  • Trigger pull
  • Daisy BBs
  • Smart Shot a no go
  • Beeman Perfect Rounds
  • Shot count
  • Discussion
  • Summary

Today we look at the velocity of the Sig P320 M17 pellet pistol. But there will be more to this test than just three pellets. Because readers wondered if it could also shoot BBs and I learned that it can, I will test them, as well. As long as I’m testing BBs, I will test lead balls of differing sizes, because when we get to the accuracy test I’ll want to test them as well.

Correction

I told you in the last part that the magazine cap has to be removed to insert a CO2 cartridge. That was incorrect. Just remove the mag from the gun and insert the cartridge by following the directions in the manual. Leave the cap alone. read more

Sig Sauer P320 M17 CO2 pellet pistol: Part 1

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by Tom Gaylord
Writing as B.B. Pelletier

Sig M17 pellet pistoll
Sig Sauer P320 M17 pellet pistol.

This report covers:

  • M17 differences
  • M17 pellet pistol
  • My grand plan
  • What’s up?
  • Lookalikes are coming to the top
  • Back to the M17 pellet pistol
  • Operation
  • Disassembly
  • Same heft
  • Summary

To all our American readers I want to wish a very happy Thanksgiving. Now, on to today’s report.

On January 19, 2017 it was announced that the U.S. Army had selected the Sig Sauer P320 pistol for their new Modular Handgun System. The full-sized gun is called the M17 and the carry-sized weapon is the M18. The rest of the U.S. armed forces also have or will have this sidearm. The nominal caliber for the U.S. military is the 9X19mm pistol cartridge that is best-known as the 9mm Luger.

M17 differences

The M17 is not just a P320 by a different name. The Army specified certain performance requirements for their pistol and they require Sig to maintain a strict separation in their plants between Army contract guns and similar civilian guns. This not only covers the finished guns but also all parts. read more

Crosman DPMS SBR full-auto BB gun: Part 3

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by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2

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

This report covers:

  • Summary
  • The report
  • The test
  • Hornady Black Diamond
  • Second group
  • Hornady full auto
  • Crosman Copperheads
  • Copperheads full auto
  • Air Venturi Steel BBs
  • Next?
  • Summary

Summary

Buy it, buy it, buy it! The Crosman DPMS SBR is a best buy, both in a reliable full auto BB gun and also in one that’s accurate.

That was my summary. Do I even need to write the rest of the report?

The report

Oh, all right! I’m here anyway, so let me show you what happened. Today is accuracy day for the DPMS and I was excited to see what it can do. I had seen indications of accuracy at the NRA Show a couple months ago, and in his video report Tyler Patner also showed us some good targets at a range farther than we normally shoot BB guns.

The test

Tyler shot at 10 yards. I’m shooting at the usual 5 meters (16.4 feet) until I know that the DPMS is really accurate. You’ll see why when I tell you what I plan on doing. read more

Crosman DPMS SBR full-auto BB gun: Part 2

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by Tom Gaylord
Writing as B.B. Pelletier

Part 1

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

This report covers:

  • Never run out of bullets
  • The feel of the gun when firing
  • Here we go!
  • Left cartridge first
  • Copperheads first
  • How does it feel, single-shot?
  • Air Venturi Steel BBs
  • Hornady Black Diamond
  • How many shots?
  • Using the BB speedloader
  • Full auto
  • Test 1
  • Test 2
  • Test 3
  • Test 4
  • Test 5
  • Test 6
  • Discussion
  • Test 7
  • Shot count
  • Feel of full auto
  • Trigger pull
  • Forgot I had to cock it
  • Summary

Never run out of bullets

The first part of this report didn’t receive that many comments, but those who did say something said similar things. The first was you all want this gun to never run out of BBs. You want it to get no less than 150 shots before it’s time to reload.

When I was a kid I wanted the same thing. I wanted all my guns to hold an infinite numbers of bullet, so they would never run out. Then I went into the Army and got to shoot many fully automatic weapons. I quickly learned that the first thing you want in a machine gun is reliability.

I remember that the M85 .50 caliber machine gun that was designed for fitting inside the turrets of armored vehicles was the worst machine gun to exist since the French Chauchat of WWI. It jammed all the time and seldom would fire an entire belt of ammo without stopping. You had to lubricate the cartridges with fireproof hydraulic oil to keep the gun operating. read more

Crosman DPMS SBR full-auto BB gun: Part 1

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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

Diana Chaser air pistol: Part 3

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by Tom Gaylord
Writing as B.B. Pelletier

Part 1
Part 2

Diana Chaser air pistol
The Diana Chaser is a new CO2 pistol.

This report covers:

  • The test
  • Qiang Yuan Match pellets
  • Adjusted the sights
  • JSB Exact RS
  • Pellets jamming
  • Trigger pull changed
  • Sig Match Ballistic Alloy
  • RWS Superdome
  • The magazine
  • Open sights visible?
  • RWS Superdomes through the magazine
  • Discussion
  • Surprise!

Today is accuracy day for the Diana Chaser air pistol. I threw in some extra tests just for fun. This should be interesting, so let’s go!

The test

I shot off a sandbag rest at 10 meters. I used the single shot tray for the first 4 groups, then switched to the magazine for the final group. There were some interesting results that I couldn’t have predicted.

Qiang Yuan Match pellets

I shot the first group with Qiang Yuan Match pellets. No particular reason for that, other than I had them ready. They hit the target low and to the left, but I left the sights where they were and shot all 10 pellets. They landed in a group that measures 1.052-inches between centers. This was larger than I had hoped for the Chaser. read more