As was brought up in another thread recently, having the ability to preload some ammo tubes and quickly load magazines from them would be nice. It's something I suggested to Skunk when he was first designing the loader as well. Anyway, I made my own system for this. Here are a few pictures as well as a link to an album with more detail.
I used some tubing and caps from McMaster Carr and some nylon and steel spacers from Hillman.
I made tubes for 10, 15, 18, and 25 rounds. The 10 and 25 specifically for the 15-22, and the 15 and 18 for loading some tube fed Marlins that I have.
The tubing I used is 48" long. I scored it with a razor blade at the length I wanted, and broke it at the scored line, 1" per round. McMaster-Carr
For the vinyl caps: McMaster-Carr
Also used some Goodyear wiper blade packaging to hold the preloaded tubes for easy storage and transport.
Here's a link to a more comprehensive album of pictures:
15-22 Speed Loader Mod - Imgur




I used some tubing and caps from McMaster Carr and some nylon and steel spacers from Hillman.
I made tubes for 10, 15, 18, and 25 rounds. The 10 and 25 specifically for the 15-22, and the 15 and 18 for loading some tube fed Marlins that I have.
The tubing I used is 48" long. I scored it with a razor blade at the length I wanted, and broke it at the scored line, 1" per round. McMaster-Carr
For the vinyl caps: McMaster-Carr
Also used some Goodyear wiper blade packaging to hold the preloaded tubes for easy storage and transport.

Here's a link to a more comprehensive album of pictures:
15-22 Speed Loader Mod - Imgur