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CRIMPING RIFLE AMMO
#8542129
02/26/22 05:39 PM
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Joined: Nov 2005
Posts: 5,306
DLALLDER
OP
THF Trophy Hunter
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OP
THF Trophy Hunter
Joined: Nov 2005
Posts: 5,306 |
I have never crimped any rifle loads so I am a dummy about the process. I have a 2 die set for the cartridge that I want to reload but the main question is " can I put a slight crimp on the rifle cartridge with the seating die that is standard in a 2 die set?" If NO does that mean I have to order an additional die and what do I ask for? Thanks Daniel
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8542137
02/26/22 05:48 PM
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Joined: Nov 2011
Posts: 9,835
unclebubba
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2011
Posts: 9,835 |
What are you trying to crimp? The only rifle ammo I crimp is 300 BLK and 45-70...And I'm not even sure that I have to crimp the 300 BLK. I do it because it is fired from a semi auto. I use a lee factory crimp die on the 300 and the roll crimp on the 45-70.
Last edited by unclebubba; 02/26/22 05:49 PM.
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Re: CRIMPING RIFLE AMMO
[Re: unclebubba]
#8542141
02/26/22 05:53 PM
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Joined: Nov 2005
Posts: 5,306
DLALLDER
OP
THF Trophy Hunter
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OP
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Joined: Nov 2005
Posts: 5,306 |
What are you trying to crimp? The only rifle ammo I crimp is 300 BLK and 45-70...And I'm not even sure that I have to crimp the 300 BLK. I do it because it is fired from a semi auto. I use a lee factory crimp die on the 300 and the roll crimp on the 45-70. BUBBA, the 300 Ham'r is what i am goint to crimp. The ammo will be shot in a bolt gun and a semi auto. Thanks Daniel
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8542194
02/26/22 06:59 PM
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Joined: May 2007
Posts: 1,216
papa45
Pro Tracker
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Pro Tracker
Joined: May 2007
Posts: 1,216 |
The simple answer is yes. I do it for my .30-30. It's a matter of lowering your seating die to allow the mouth of the cartridge to meet the crimp ring in the die at the end of the stroke, and, adjusting the bullet seating stem to make the cannelure meet the cartridge mouth at the same time. Brass must all be trimmed to the same length or crimps will not be consistent. Too much crimp will cause a slight bulge that will prevent chambering,
Last edited by papa45; 02/26/22 07:00 PM.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8542332
02/26/22 09:55 PM
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Joined: May 2017
Posts: 5,156
Smokey Bear
THF Trophy Hunter
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THF Trophy Hunter
Joined: May 2017
Posts: 5,156 |
What papa45 said. Trim all your brass to the same length. Back the seating stem off. Put a piece of brass in the shell holder and with the ram to the top. Screw the seating die in till you feel it touch the brass. Back it off a couple turns. Now screw in the seating stem till you seat a bullet to your desired COAL. Now back the seating stem off enough to tighten the die back down till it touches the brass with the ram at its highest point. Lower the ram and give the die another 1/4 turn. Run the cartridge into the die and look at the crimp you get. Incrementally screw in the die till you have the desired crimp. Tighten the lock ring. Now with the ram fully raised, tighten the seater stem till it touches the bullet. You may have to tweak the seater a 1/4 turn or so tighter to find tune COAL. That is all there is to it.
Smokey Bear---Lone Star State.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8542407
02/26/22 11:33 PM
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Joined: Nov 2005
Posts: 5,306
DLALLDER
OP
THF Trophy Hunter
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OP
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Joined: Nov 2005
Posts: 5,306 |
Saddle Tramp, Pm answered. Thanks Daniel
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8542714
02/27/22 05:24 AM
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Joined: Aug 2015
Posts: 4,053
Pig_Popper
Extreme Tracker
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Extreme Tracker
Joined: Aug 2015
Posts: 4,053 |
I only crimp using Lee FCD
Never with the seating die itself
This space is For Sale - inquire within ...
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8542750
02/27/22 12:03 PM
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Joined: Dec 2013
Posts: 6,779
GasGuzzler
THF Trophy Hunter
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THF Trophy Hunter
Joined: Dec 2013
Posts: 6,779 |
A rifle seating die should not "crimp" a case. Use a Lee FCD for that job. I have one for 5.56X45, .30-30 WIN, 7.62X39 ... and I have them for pistols too BUT the FCD is not the same for pistol cartridges as the rifle FCD.
The rifle version just squeezes the case mouth from all sides simultaneously and does not "crimp in" the case mouth to "bite the bullet" like a roll or taper crimp does. The FCD does not require all brass be exactly the same like other methods.
Pass the gravy.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8542804
02/27/22 02:11 PM
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Joined: Nov 2011
Posts: 9,835
unclebubba
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2011
Posts: 9,835 |
What are you trying to crimp? The only rifle ammo I crimp is 300 BLK and 45-70...And I'm not even sure that I have to crimp the 300 BLK. I do it because it is fired from a semi auto. I use a lee factory crimp die on the 300 and the roll crimp on the 45-70. BUBBA, the 300 Ham'r is what i am goint to crimp. The ammo will be shot in a bolt gun and a semi auto. Thanks Daniel I'd go with a lee factory crimp die if it were me.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8542845
02/27/22 03:07 PM
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Joined: Oct 2009
Posts: 12,158
wp75169
THF Celebrity
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THF Celebrity
Joined: Oct 2009
Posts: 12,158 |
Lee FCD for me. Seeing the explanation of how to set it up with seating die reminds me of my good decision.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8543050
02/27/22 08:02 PM
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Joined: Oct 2004
Posts: 39,481
redchevy
THF Celebrity
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THF Celebrity
Joined: Oct 2004
Posts: 39,481 |
Crimping with the seating did is just like a roll crimp on a pistol case no? I’ve never crimped rifle ammo.
It's hell eatin em live
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8543139
02/27/22 10:19 PM
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Joined: Jan 2009
Posts: 11,950
kry226
The General
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The General
Joined: Jan 2009
Posts: 11,950 |
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8543299
02/28/22 12:58 AM
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Joined: Aug 2011
Posts: 6,168
Tactical Cowboy
THF Trophy Hunter
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THF Trophy Hunter
Joined: Aug 2011
Posts: 6,168 |
The secret to a long life is to try not to shorten it.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8543329
02/28/22 01:18 AM
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Joined: Nov 2011
Posts: 9,835
unclebubba
THF Trophy Hunter
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THF Trophy Hunter
Joined: Nov 2011
Posts: 9,835 |
I think this is the only situation where I see Lee dies recommend unanimously!
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8543362
02/28/22 01:48 AM
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Joined: May 2011
Posts: 1,986
TAB
Pro Tracker
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Pro Tracker
Joined: May 2011
Posts: 1,986 |
Not really sure what crimping a rifle round gets you. .002-.003” neck tension is perfect and will feed from magazines reliably and will produce the most consistency.
I suppose if your using a Dillon or something progressive and making some plinking ammo I guess.. I wouldn’t waste the effort energy or time, set up the die and roll on.
I’m assuming we are talking about bottle necked modern rifle rounds not a cowboy action straight wall which in that case will benefit from a crimp especially a 44 mag using H110 .
Last edited by TAB; 02/28/22 01:50 AM.
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Re: CRIMPING RIFLE AMMO
[Re: TAB]
#8543424
02/28/22 02:36 AM
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Joined: Nov 2005
Posts: 5,306
DLALLDER
OP
THF Trophy Hunter
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OP
THF Trophy Hunter
Joined: Nov 2005
Posts: 5,306 |
Not really sure what crimping a rifle round gets you. .002-.003” neck tension is perfect and will feed from magazines reliably and will produce the most consistency.
I suppose if your using a Dillon or something progressive and making some plinking ammo I guess.. I wouldn’t waste the effort energy or time, set up the die and roll on.
I’m assuming we are talking about bottle necked modern rifle rounds not a cowboy action straight wall which in that case will benefit from a crimp especially a 44 mag using H110 . It is a 300 Ham'r cartridge.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8543592
02/28/22 12:57 PM
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Joined: Dec 2011
Posts: 3,560
garyrapp55
Extreme Tracker
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Extreme Tracker
Joined: Dec 2011
Posts: 3,560 |
I used to crimp my 6.8 stuff with the seater, but if the case lengths are different, the crimp was different. I quit crimping and have suffered no ill effects.
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Re: CRIMPING RIFLE AMMO
[Re: Pig_Popper]
#8543609
02/28/22 01:19 PM
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Joined: May 2016
Posts: 2,420
yotehater
Veteran Tracker
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Veteran Tracker
Joined: May 2016
Posts: 2,420 |
I only crimp using Lee FCD
Never with the seating die itself
this for every semi rifle.
One shot is all it should take.
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Re: CRIMPING RIFLE AMMO
[Re: TAB]
#8543664
02/28/22 02:14 PM
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Joined: Dec 2013
Posts: 6,779
GasGuzzler
THF Trophy Hunter
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THF Trophy Hunter
Joined: Dec 2013
Posts: 6,779 |
Not really sure what crimping a rifle round gets you. .002-.003” neck tension is perfect and will feed from magazines reliably and will produce the most consistency.
I suppose if your using a Dillon or something progressive and making some plinking ammo I guess.. I wouldn’t waste the effort energy or time, set up the die and roll on.
I’m assuming we are talking about bottle necked modern rifle rounds not a cowboy action straight wall which in that case will benefit from a crimp especially a 44 mag using H110 . It's not for tension it's for uniformity for me. And as stated, the post seat crimp die from Lee is a completely different animal with a different purpose for straight wall pistol rounds.
Pass the gravy.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8543775
02/28/22 03:36 PM
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Joined: Jan 2009
Posts: 19,157
Judd
#1 Creedmoor Fan
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#1 Creedmoor Fan
Joined: Jan 2009
Posts: 19,157 |
Not really sure what crimping a rifle round gets you. .002-.003” neck tension is perfect and will feed from magazines reliably and will produce the most consistency.
I suppose if your using a Dillon or something progressive and making some plinking ammo I guess.. I wouldn’t waste the effort energy or time, set up the die and roll on.
I’m assuming we are talking about bottle necked modern rifle rounds not a cowboy action straight wall which in that case will benefit from a crimp especially a 44 mag using H110 . It is a 300 Ham'r cartridge. I have a Hamr....never have I ever purposely crimped. I did crimp a few cases very early in my reloading just because I was ignorant and didn't realize I had the die set to low (longer back that I care to admit lol). Nothing wrong with crimping, I just don't see it as necessary...even on an AR or Hamr.
Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel
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Re: CRIMPING RIFLE AMMO
[Re: TAB]
#8544483
03/01/22 06:19 AM
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Joined: Aug 2011
Posts: 6,168
Tactical Cowboy
THF Trophy Hunter
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THF Trophy Hunter
Joined: Aug 2011
Posts: 6,168 |
Not really sure what crimping a rifle round gets you. .002-.003” neck tension is perfect and will feed from magazines reliably and will produce the most consistency.
I suppose if your using a Dillon or something progressive and making some plinking ammo I guess.. I wouldn’t waste the effort energy or time, set up the die and roll on.
I’m assuming we are talking about bottle necked modern rifle rounds not a cowboy action straight wall which in that case will benefit from a crimp especially a 44 mag using H110 . Do Dillon’s not make good ammo?
The secret to a long life is to try not to shorten it.
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8544613
03/01/22 01:17 PM
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Joined: May 2017
Posts: 5,156
Smokey Bear
THF Trophy Hunter
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THF Trophy Hunter
Joined: May 2017
Posts: 5,156 |
Loading Maximum 556 loads can end up with a few blown primers if you get bullet set back in an auto loader. That is first hand. Crimping put a stop to it. Again first hand. That is why crimping is recommended in an auto loader. It is one of those things that is never a problem, until it is…
Smokey Bear---Lone Star State.
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Re: CRIMPING RIFLE AMMO
[Re: Smokey Bear]
#8544655
03/01/22 02:08 PM
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Joined: Nov 2007
Posts: 603
ASIC777
Tracker
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Tracker
Joined: Nov 2007
Posts: 603 |
Loading Maximum 556 loads can end up with a few blown primers if you get bullet set back in an auto loader. That is first hand. Crimping put a stop to it. Again first hand. That is why crimping is recommended in an auto loader. It is one of those things that is never a problem, until it is… +2 First hand, you don't even have to be loading near max. Older non-M4 feed ramps are hell on soft point bullets. Push one far enough back into the case and it yaws causing a blockage as it tries to leave the cartridge leading to excessive pressure. I use the Lee FCD on .223, .308, and 30-30 due to being tube fed.
Lifetime NRA Member
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Re: CRIMPING RIFLE AMMO
[Re: DLALLDER]
#8547550
03/04/22 03:08 PM
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Joined: Nov 2005
Posts: 5,306
DLALLDER
OP
THF Trophy Hunter
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OP
THF Trophy Hunter
Joined: Nov 2005
Posts: 5,306 |
I am going to give an example of the type of guys that are here on the THF. After posting the crimping question, one of the members sent me a PM saying he would sent me a Lee FCD FREE!!!! I got it in the mail yesterday. SADDLE TRAMP , You are a GREAT guy. Thanks Daniel
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