Anyone know why Lee does not make a factory crimp die for 270wsm? You can buy a die for 300wsm off the shelf at the sporting goods story but you need to send Lee a dummy 270 wsm round and they will make you a 270wsm factory crimp die, the 300 wsm and 270 wsm cases are almost the same.
Anyone know why,,,,,,,,,,,,,
- Thread starter deerslayer
- Start date
The reason I use a factory crimp is that most bullets I use for reloading do not have a crimp grove, so using your seating die to crimp is out. Crimping creates a uniform start pressure. Have ever been at the range, you just put two side by side, then the third is a flyer, opens your group up to two inches, was that you or was the neck tension on that round a little different then the first two. Also some times in the field ammo gets handled roughly, take a round that has not been crimped, chamber it in and out of your rifle a few times, check the bullet to see if it has been pushed into the case ( most experienced reloader's use some kind of precise measuring device to see if the c.o.l. has changed) or has bullet become a bit loose.The majority of factory ammo is crimped?
I crimp for bolt rifles, I want the bullets to be tightly held, and while I can justify it by internal ballistic notions, it is really for mechanical reasons. I have had a bullet catch on the feed ramp when I was cycling an action quickly, and jam the bullet back inside the case, then the case was kinked and would not load without being re-sized, luckily this did not happen when a bear was looking to make me lunch... In the interest of surest feeding, I crimp the bullets in place. I aim for hunting accuracy, and have no idea if it contributes.
you are just reducing the life of your brass by crimping for a bolt rifle.
