I have 452488 and I just loaded 5 gr of tightgroup .Had to set the bullet deep in brass to get it to go all the way in to the chamber.Overall length is 1.125.Will test in the next few days .Click image for larger version. Name: 6946new1.jpg Views: 3 Size: 201.9 KB ID: 251657
I have read to short OAL could build up to much preasure.What do you think??