Factory loads are crimped, but it's a taper crimp. Take a factory load that works well in your gun, measure the case mouth on the loaded round and set your taper crimp die to achieve the same case mouth diameter on your loaded round. The taper crimp is essential for reliable ammunition in an auto loader, and is the most common issue when ammunition isn't working in an otherwise reliable gun.
The second issue is cartridge overall length, so watch that closely. Get those two right and chances are the ammo will work just fine.
