IZH MP655 BB and pellet pistol – Part 3

by B.B. Pelletier

Before we start, I have a some announcements.

Pyramyd Air’s 3rd annual airgun garage sale is on June 5 from 10 am to 3 pm. There will be discontinued, blemished and used guns, scopes and other accessories — plus dented tins of pellets. John Goff from Crosman will be flipping burgers and Pyramyd Air’s technicians will be on hand to help with any questions you might have. Come early for the best selection!

The 18th annual Daisy Get Together will be held on Sunday, August 22, at the Kalamazoo County Fairgrounds Expo Center in Kalamazoo, Michigan, from 9 am to 3 pm. Admission is $2.00…and well worth the entry fee! If you have any interest in buying, selling, trading or seeing vintage BB guns, cap guns and toy guns, this is THE place to go. Besides those great old Daisy guns, there will be plenty of other brands, many so rare that you probably won’t see a second example anywhere else. Contact Bill Duimstra (616-738-2425 or ) or Wes Powers (517-423-4148) for a brochure. read more

IZH MP-656K or TT33 BB pistol – Part 1

by B.B. Pelletier

The IZH Baikal MP656K, which is the BB gun version of the Tula Tokarev…commonly called the TT33 Tokarev.

I always like to give you guys something to talk about over the weekend. Today’s pistol should generate a lot of conversation. Not only is it a BB pistol made on the TT33 Tokarev styling, this one is made out of a real Tokarev.

Back during the Vietnam War, I owned two of these. Each was a Norinco Chi Com variant of the Russian Tokarev. I learned then what a novel little pistol this is. It fires a .30 cal (7.62mm) bottlenecked cartridge that closely resembles the .30 cal. broomhandle Mauser round. I fount it possible to make reloads from highly reworked 5.56mm brass. But the brass swelled, and I don’t recommend it to anybody. Ammunition was impossible to come by in the 1970s, but it’s pretty common today. read more

Benjamin Marauder, .25 caliber – Part 2

by B.B. Pelletier

Part 1

The last time I looked at the Marauder was when I was out of the hospital for 4 days in April. Today, thanks to the help of Mac, I’ll look at velocity. Mac tested several pellets you’re likely to use in the rifle. Because pellets have been coming up with odd weights lately, Mac weighed them to see what they really weigh. He tested Sam Yang, H&N Baracudas, Benjamin domes and Eun Jins.

The H&N Baracudas ranged from 29.8 grains to 30.3 grains. That’s a very tight spread, but not as heavy as advertised (which is 31.02). The average weight for Baracudas was 30.0 grains. We’ve weighed the Benjamin domes before, but Mac did it again. This group ranged from 27.3 to 27.9 grains. An EXTREMELY tight spread. The average was 27.6 grains. Beeman Crow Magnums ranged from 26.2 to 26.4 grains. Again, an extremely tight spread. The average was 26.3 grains. Eun Jins ranged from 35.1 to 36.0 grains. Also, not bad for such a heavyweight pellet. The average was 35.4 grains. Sam Yang was the heaviest pellet of all, ranging from 42.1 to 42.4 grains. That was also the tightest spread. The average weight was 42.3 grains. The longest pellet Mac tested in the Marauder magazine was the Sam Yang, which measured 0.456 inches long. That indicates you can use very beefy pellets in this gun, if you want. read more

More on manufacturing tolerances

by B.B. Pelletier

Today’s guest blog is so fantastic, I jumped at the chance to use it. Brian has been making precision aircraft and missile parts for over 30 years, so he knows quite a bit about the subject of manufacturing tolerances. Take it away, Brian.

by Brian Saada, aka Brian in Idaho

If you’re a regular reader of the Pyramyd Air blog, then you probably read BB’s article of May 21, Pellet Variation What Do You Do?

The simple answer to that question is — not much! Or, as BB noted, you can weigh, sort and package your pellets with some semblance of order as to actual weights. Still, some of us may want to know more about these types of manufacturing variation(s) and what causes them. Is there no perfection to be had out there? In production manufacturing, there’s no perfection — only allowable tolerance or deviation from the norm. read more

IZH MP655 BB and pellet pistol – Part 2

by B.B. Pelletier

I’m still in the hospital, but my best friend, Mac, has come to my house and is doing some testing at my request. I’m now able to evaluate current airguns again based on his tests. So, let’s do part 2 of the IZH Baikal MP655K.

Part 1

The IZH MP655 is an interesting and uncommon CO2 gun.

I told you in part 1 that this is a different air pistol. And, indeed, it is. It shoots both BBs and pellets. Therefore, I’ll concentrate on BBs only in this report, as there are many different things you haven’t seen before that I’d like to cover.

The MP 655K shoots both BBs and pellets. The BB clip is the one on the left — with the magnet in the center.
read more

Projectile weight

by B.B. Pelletier

Update on Tom/B.B.: Tom’s condition continues to improve, and some milestones the doctors have set have been reached and even surpassed. Since Saturday, he’s been all smiles and has perked up quite a bit because his best friend, Mac, has arrived for a week’s stay. He’ll be testing guns and providing velocity and accuracy data, which B.B. will use to write blogs over the next few weeks. Since Mac is a heck of a great shot, we should be seeing some really good targets and groups.

Today’s blog is based on the various comments to the previous blogs about Pellet variation and Mass production.

AlanL has previously commented that light pellets might be more efficient and was wondering about things like drag. He specifically mentioned using aluminum for pellets. I thought I would take today and do a short report on some projectile weight changes that have been made and had major impacts over the years. read more

Pellet variation: What do you do?

by B.B. Pelletier

Update on Tom/B.B.: Tom is doing well. He keeps telling me he feels fantastic. His voice is getting stronger and stronger, as demonstrated by the 8-10 times a day he calls me with things he wants me to do, dictating new scripts for the Airgun Academy videos, blogs, blog answers, his Shotgun News column, etc. It’s obvious that he’s suffering from airgun withdrawal and needs to immerse himself in things.

Announcement: Just a reminder that Pyramyd Air is having an airgun garage sale on June 5. They’ve extended the hours, so now it’s being held from 10 am to 3 pm. They keeping adding more stuff to the sale pile, so they wanted to give everyone more time to look around. read more