Need to Crimp with another die

Teri Anne

Well-Known Member
LRH Team Member
Joined
May 24, 2021
Messages
187
Location
Wisconsin
That’s your opinion and your entitled to it but the LEE FCD has been proven to be beneficial, The military crimps everything for a reason
I am not trying to be argumentative. To crimp or not to crimp is strictly a personal preference. Remember I spent 30 years in the Army as either a full time or extra duty marksmanship instructor. Yes you are in fact correct that the military does crimp most of its ammunition and there is a reason for this. Most military ammunition has the ability to be fired in fully automatic firearms. Without crimping bullets have a tendency to dislodge due to kinetic action similar to a Kinetic Bullet Puller. If a bullet dislodges it WILL JAM a firearm and if in combat at the time it could be with devastating results. Military Match ammunition conversely is not crimped and is marked as Match ammunition not to be confused with Ball Ammo.
 

ButterBean

Well-Known Member
LRH Team Member
Joined
Feb 5, 2012
Messages
5,416
Location
West Terre Haute Indiana
I am not trying to be argumentative. To crimp or not to crimp is strictly a personal preference. Remember I spent 30 years in the Army as either a full time or extra duty marksmanship instructor. Yes you are in fact correct that the military does crimp most of its ammunition and there is a reason for this. Most military ammunition has the ability to be fired in fully automatic firearms. Without crimping bullets have a tendency to dislodge due to kinetic action similar to a Kinetic Bullet Puller. If a bullet dislodges it WILL JAM a firearm and if in combat at the time it could be with devastating results. Military Match ammunition conversely is not crimped and is marked as Match ammunition not to be confused with Ball Ammo.
Yep I know all about the military ammo and the inner workings of the armory but as I said it has been proven here and a few other forums that the LEE FCD is just an important tuning tool to a reloading bench as any other, I have worked decades proving this point, Controlling Powder Ignition Dwell can be manipulated with neck interference but the LEE FCD can fine tune PID in a very simple procedure, The old adage of "Bolt guns don't need a crimp " is outdated, with that being said you no you don't need to crimp as been proven over the years but for all the folks that have that mindset I can I can say is your missing out on a very valuable tool that cost's pennies compared to the some of the equipment folks buy in the quest for the most accurate ammo they can produce
 

Teri Anne

Well-Known Member
LRH Team Member
Joined
May 24, 2021
Messages
187
Location
Wisconsin
Yep I know all about the military ammo and the inner workings of the armory but as I said it has been proven here and a few other forums that the LEE FCD is just an important tuning tool to a reloading bench as any other, I have worked decades proving this point, Controlling Powder Ignition Dwell can be manipulated with neck interference but the LEE FCD can fine tune PID in a very simple procedure, The old adage of "Bolt guns don't need a crimp " is outdated, with that being said you no you don't need to crimp as been proven over the years but for all the folks that have that mindset I can I can say is your missing out on a very valuable tool that cost's pennies compared to the some of the equipment folks buy in the quest for the most accurate ammo they can produce
Well Butter, since I am known to be one that tries to get the tightest group possible I decided to give it a try. Just ordered a Lee crimping die for my 300 WM to give it a try. Will let you know how it works out for me.
 

ButterBean

Well-Known Member
LRH Team Member
Joined
Feb 5, 2012
Messages
5,416
Location
West Terre Haute Indiana
Well Butter, since I am known to be one that tries to get the tightest group possible I decided to give it a try. Just ordered a Lee crimping die for my 300 WM to give it a try. Will let you know how it works out for me.
That's awesome Here's how we are setting them up, the 1/8th turn is where we start, you can continue up to a half turn, I have never seen any gains after that and please excuse me as I did not say Lady's and Gentlemen

 

snox801

Well-Known Member
Joined
Sep 19, 2012
Messages
3,726
Location
Spring Lake Michigan
Bean can you show some pictures of how much you crimp with the Hammers? I used to crimp everything before a started using bushing dies but it sure seemed to be hard on the brass. Always left a ring at the ends of the case neck.

Maybe I was crimping too much? 🤷‍♂️
I would also love to see how much he crimps.
I went away from bushing dies to a lee. Mainly as stated for hammers I don’t think it could hurt to try them in other loads I have with hammers that are not auto loaders.
 

snox801

Well-Known Member
Joined
Sep 19, 2012
Messages
3,726
Location
Spring Lake Michigan
That's awesome Here's how we are setting them up, the 1/8th turn is where we start, you can continue up to a half turn, I have never seen any gains after that and please excuse me as I did not say Lady's and Gentlemen

Hey great video it was prettier than the fella in the video.
Anyway that’s exactly how I was doing mine so I think I’m good. I do a full 1/4 turn on my ar stuff as they get slammed back and forth a lot so I prefer the bullet not move.
 

justinp61

Well-Known Member
Joined
Jul 31, 2011
Messages
280
I don’t shoot a 300 but am considering crimping my 22-250 rounds. The bullet I load doesn’t have a lot of bearing surface in the case neck. This a coyote/groundhog rifle that will most likely get beat around and I don’t want to take any chances of having a dislodged bullet in the magazine.
 

ButterBean

Well-Known Member
LRH Team Member
Joined
Feb 5, 2012
Messages
5,416
Location
West Terre Haute Indiana
I don’t shoot a 300 but am considering crimping my 22-250 rounds. The bullet I load doesn’t have a lot of bearing surface in the case neck. This a coyote/groundhog rifle that will most likely get beat around and I don’t want to take any chances of having a dislodged bullet in the magazine.
That’s smart thinking
 

motrapper

Well-Known Member
Joined
Oct 14, 2007
Messages
384
Location
Sandy Utah
Have used LFCD on all my Straight wall guns and have very consistent performance.
So i just tried one on my 300wm in my RPR and first loads are tearing a single ragged hole for 5 shots at 100yds
Might be something to this on bottle necks!!
 

Recent Posts

Top