My new side arm should be here tomorrow WAHOO! I've reloaded for 40 years but for the life of me I've never done a "roll crimp" & I've loaded my Black Hawk .41 mag w/no issues or crimps. BUT it sounds like a roll crimp is called for in my new side arm? I'm loading 300gr Noslers in new winchester brass / CCI 350 primers & 22gr of 300 MP... OAL 1.61 SO how do I "roll crimp" these beasts... and any suggestions on the loads. This is griz country and snicker if you want... but there are bigger and bader things out there!
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My New .44 mag DEagle
- Thread starter mtshus
- Start date
JT-AR-MG42
New member
My DE.44s are either a MKI or VII, lighter than a new MKXIX.
Not familiar with MP powder.
I have always taper crimped for mine pushing a 240gr. SP with 23.5 grs. of 296.
The weight of the pistol keeps recoil down (way less than a .41 Blackhawk) so that I only apply a moderate taper crimp, not a heavy crimp.
No bullet pull at all using my Lyman carbide dies and Redding taper crimp die.
All loads are checked through a cartridge gauge as well.
I do roll crimp .44 magnum loads for the lighter revolvers though.
JT
Not familiar with MP powder.
I have always taper crimped for mine pushing a 240gr. SP with 23.5 grs. of 296.
The weight of the pistol keeps recoil down (way less than a .41 Blackhawk) so that I only apply a moderate taper crimp, not a heavy crimp.
No bullet pull at all using my Lyman carbide dies and Redding taper crimp die.
All loads are checked through a cartridge gauge as well.
I do roll crimp .44 magnum loads for the lighter revolvers though.
JT
"...how do I "roll crimp" these beasts..." You only need a crimp for hot loads. Crimping is done with the seater die by turning in down until you get the amount of crimp you want. There is no measuring though. It's 'enough to hold the bullet in place under recoil and no more'.
22 grains of Power Pro 300 MP is the max load for a jacketed 300 according to Alliant. You need to work up the load, not just pick one and hope.
Friggin' DE's the biggest pistol I've ever fired. Still laugh about it. My finger came nowhere near the trigger. Need about an inch and a half more finger. Shot the thing nearly sideways.
22 grains of Power Pro 300 MP is the max load for a jacketed 300 according to Alliant. You need to work up the load, not just pick one and hope.
Friggin' DE's the biggest pistol I've ever fired. Still laugh about it. My finger came nowhere near the trigger. Need about an inch and a half more finger. Shot the thing nearly sideways.
g.willikers
New member
Of course, you need to use a roll crimp die to do a roll crimp.
And bullets with a place for the roll crimp to go.
Does the bullet you mentioned have them?
"snicker if you want"
Only one guy around here snickers.
The rest of us guffaw.
And bullets with a place for the roll crimp to go.
Does the bullet you mentioned have them?
"snicker if you want"
Only one guy around here snickers.
The rest of us guffaw.
I have an older model that works great with either 185 or 240 grain jhp with AA#9 powder.I use a redding roll crimp die as a separate operation(last station). Great fun shooting bowling pins. Your loads have to be hot for this gun to work and never,never ever use lead bullets. Enjoy
I don't own a lighter weight .44mag. I DO have an OM Ruger BH .41mag that gives a 220 grain swc about 1450 fps with 18 grains of 2400. Also have an OM .45 Colt BH that gives a 260 grain swc 1060 fps with 18 grains of 2400 from its 4.5" barrel. Its 7.5" barreled brother gives 1250 fps with that load..
44caliberkid
New member
Love my Mk I DE 44. I just use the seating/ crimping die that is standard in any 3 die 44 set. It's best to crimp in the channelure (probably didn't spell that right) You will notice the case mouth slightly "rolled" inward into the groove. That big Nosler bullet might not have a groove and you need to have an OAL that fits in the magazine. So you might have to crimp at the start of the ogive. Or taper crimp.
Use enough crimp , not too much or too little !
Too little and you won't get proper ignition of the powder. Too much will badly effect accuracy.
Semi -autos headspace on the rim and need a taper crimp. Revolvers need a roll crimp .Remember that it's not just the crimp that holds the bullet .You need a proper amount of grip of the case on the bullet !! You may have to get a different expander to get the right grip.
Too little and you won't get proper ignition of the powder. Too much will badly effect accuracy.
Semi -autos headspace on the rim and need a taper crimp. Revolvers need a roll crimp .Remember that it's not just the crimp that holds the bullet .You need a proper amount of grip of the case on the bullet !! You may have to get a different expander to get the right grip.
black mamba
New member
The roll crimper built into most seating dies works fine. Make sure the die body is backed out enough for the crimp to not touch the case mouth. Seat the bullet so the top of the case mouth is just below the top of the cannelure. Then back the seating stem out a full turn so the bullet doesn't get seated any deeper, and turn the die body down an eighth to a quarter of a turn and run it through again. Check your crimp and adjust as needed. Once the crimp is correct, run a loaded cartridge up into the die and screw the seating stem back down until it just touches the bullet, and tighten everthing up. From then on, one stroke will seat the bullet and apply the crimp.
Congratulations! Desert Eagles aren't like every thing else.
I don't know this load, but I think you are making a mistake, loading ammo for a gun you don't yet have. I don't know about the new ones, mine is one of the originals, and was set up to run 240gr bullets. Does ok with ligher slugs, if the load is warm to hot. No idea how a DE will run on 300gr slugs.
Personally, I don't think its a good idea to load any quantity of ammo without having the gun in hand to test it with. Good Luck!
The Desert Eagle does not "pull" bullets like a revolver does. I've always used the same roll crimp I use for revolver ammo, but only for convenience, as my ammo goes in both the DE and revolvers. A good heavy roll crimp is needed with certain powders, for best ignition, DE or revolver.
With proper neck tension on the bullet, a taper crimp should work ok in the Desert Eagle. Taper crimp works in my .44 Auto Mag, it will work in the Desert Eagle, if done right.
I'm loading 300gr Noslers in new winchester brass / CCI 350 primers & 22gr of 300 MP... OAL 1.61
I don't know this load, but I think you are making a mistake, loading ammo for a gun you don't yet have. I don't know about the new ones, mine is one of the originals, and was set up to run 240gr bullets. Does ok with ligher slugs, if the load is warm to hot. No idea how a DE will run on 300gr slugs.
Personally, I don't think its a good idea to load any quantity of ammo without having the gun in hand to test it with. Good Luck!
The Desert Eagle does not "pull" bullets like a revolver does. I've always used the same roll crimp I use for revolver ammo, but only for convenience, as my ammo goes in both the DE and revolvers. A good heavy roll crimp is needed with certain powders, for best ignition, DE or revolver.
With proper neck tension on the bullet, a taper crimp should work ok in the Desert Eagle. Taper crimp works in my .44 Auto Mag, it will work in the Desert Eagle, if done right.