I have a question on the pellets vs powder. I have been shooting powder for a few years and lately been wanting to transfer to pellets. I have a .45 and .54 caliber rifles. I was looking into using the 777 pellets for the easyness cleaning factor. They carry it in the .45 cal 50gr. but dont carry it in .54 cal at all. Being that I shoot a 100gr load in my .54 can I just use two .45 pellets in my .54? If Ipack it tight?