I shoot a fair amount of steel cased .223, mainly because I am cheap and lazy, and it’s pretty easy to find at a low price.
My experiences with Tula, however, have not been great.
Rifles that will cycle any other type of ammunition – Brown Bear, Wolf, Monarch, Prvi Partizan, Black Hills, Federal, etc, etc – have had major problems with Tula. Why? Because it’s really weak.
Now, I’m aware that some people say Tula and Wolf are one and the same – my rifles, and the high speed video camera, feel differently. The rifle in this video cycles Wolf with an H3 buffer – but wouldn’t cycle Tula with a carbine buffer and a standard carbine action spring. I had to drop down to a Wolff reduced power action spring, and even then, it was iffy at times.
You can see in this video just how weak it is – and inconsistent to boot.
If this rifle’s gas port was larger, it would be able to cycle Tula without using nonstandard springs – but then functionality with all other ammo types would suffer.