hi fusil,, just thought i would add my .02,,,, when i load for my wifes roller,,, if i use a bullet to long,, which will make the c. o. a. l. to long ... you will not be able to chamber the round,,, on her gun for the long bullets i took the hammer out of the action and with an endmill cut a radius in the top of it for clearance so i could use some of the longer flavor bullets,,,, even with the hammer mod. i can't use the postell style bullets,,,,you get what i refur to as a 3 point jam,, the nose of the bullet hits the bottom of the chamber,,, the side of the case hits the top rim of the chamber and the rim of the case hits the hammer,,,,, her rifle likes the smitzer style lyman bullets,, but i have to seat them deeper than i would really like to get them in the chamber,,, also these bullets are really wind sensitive when they start to slow down,,,, around the 450 -500 yrd. mark,,, but she likes to play in the 200-350 range so it doesn't matter,,,, any way you might want to try some 405 gr. bullets,, i would hate to see you buy a mould for a particular bullet and then not be able the chamber it,,, or you could buy and load just a few different ones,,, you may even talk to some of the people out there that sell bullets and see if they would send you a few ,,,like a sample,, until you see what your gun likes... i hope this helps YMMV..
ocharry