Shotgun load testing in Canada?

[Burbs4Life]

I'd like to do what it seems many people want to: shoot slugs at target load prices.

Seen lots of videos on youtube about how to cut shells, melt the shot into slugs and roll crimp.

Also seen lots of warnings about how this makes the load a hazard from fast burning / wrong powder etc. But ppl are still doing it, presumably without blowing up their guns. So how safe are these loads actually?

In the states you can get loads tested for like $25-$40
https://www.precisionreloading.com/view.php?pg=shot_proof

Is their anyone in Canada doing this testing? I'd spend $25 to get these re-loads tested no problem. What am I missing? Why does noone get this done?

 

[Jessegreenwood]

I asked for similar solution. No answer.
But my research has found it is generally acceptable to sub a slug in for equal weight of shot.
By that logic, replacing the shot with a slug or ball of equal or less weight, should result in slighly less pressure, because loose shot pushes out on the wad, creating more resistance.
I bought a .69 roundball mold for that reason, and have some 1 1/8 target loads converted this way.

 

[cosmic]

I'm surprised enterprising young lads like yourselves dont look into making your own tester. All you need are strain gages, an oscilloscope, a cheap single shot, and some factory shells to calibrate with. You could even turn it into a money making enterprise...

 

[saskbooknut]

RSI Pressure Trace II system will set you back about $1000US - there are 2 pressure ranges 0-20,000 psi for shotgun and black powder, and 0-80,000 psi.
You will encounter a problem in obtaining calibration cartridges of known pressure.
You probably would want a gun dedicated to pressure testing, with measured spec chamber and no choke.
The company website and YouTube videos are worth a look.
I cannot imagine that a pressure testing service for shotshells is economically viable in Canada
Precision Reloading in the US will have installed pressure testing for their own data developing non-toxic loads. Providing a commercial service is an additional revenue source.
The Canadian shotshell reloading market is insignificant, when compared to the US market size.

 

[theophys]

I'm surprised enterprising young lads like yourselves dont look into making your own tester. All you need are strain gages, an oscilloscope, a cheap single shot, and some factory shells to calibrate with. You could even turn it into a money making enterprise...

I've been trying to do just that but with a custom chamber and a lead crusher... so far, no time to push that project along.
I do have a dozen of strain gauges and 'scope though. Care to team up?