BSA Airsporter Mark IV: Part 3

by Tom Gaylord
Writing as B.B. Pelletier

BSA Airsporter
The BSA Airsporter Mark I is an all-time classic.

Part 1
Part 2

A history of airguns

This report covers:

  • The test
  • Sight-in
  • RWS Superpoints
  • Open sights
  • Is it my eye?
  • Eley Wasps
  • The eyes have it
  • Next?

Today is the first accuracy day for my new .22 caliber BSA Airsporter Mark IV. As the picture shows, it came with an old Dianawerk scope mounted, and I said I would test it with that first. So that’s what I did.

The test

Today I shot off a sandbag at 10 meters, just to get familiar with the rifle. I tried it both using the artillery hold and directly rested on the bag. The first groups were shot using the scope.


The scope was not exactly on target like I had hoped, but it was close enough on the first shot that I adjusted it to hit near the POI. The scope is not adjusted for parallax as close as 10 meters so the image is fuzzy. The reticle is a German hunting reticle with three heavy black lines — two on either side and a pointer coming up from the bottom. You put the tip of the pointer on the target when hunting, but it gets lost on a black bull, so I set it at 6 o’clock. read more

Sheridan Supergrade: Part 3

by Tom Gaylord
Writing as B.B. Pelletier

Sheridan Supergrade
Sheridan model A, also called the Supergrade.

Sheridan Supergrade: Part 1
Sheridan Supergrade: Part 2

A history of airguns

This report covers:

  • Crosman Premiers
  • Sheridan Cylindrical pellets
  • Now, for the interesting stuff!
  • Pelletgage
  • Too many variables!
  • Trigger
  • Results

I think today will open some eyes. I know it opened mine! Today is accuracy day with the Sheridan Supergrade I borrowed. I’ll get right into it, because the surprises came during the test.

Crosman Premiers

Though no longer made, Crosman Premiers in .20 caliber are some of the most accurate pellets I’ve ever used. I started with them. It’s 10 shots at 10 meters from a bag rest. I pumped the gun 5 times for each shot. The Supergrade has an adjustable rear peep sight that should be more precise than the open sights on my Sheridan Blue Streak. read more