nice video. Have you measured the velocity of a minimal crimp versus full crimp? that is, velocity being relational to pressure. thanks again for your great videos and explanations.
The Neckdown Crimp is produced with the RCBS seating/crimp die. I removed the seating plug because I don't use it to seat my bullets. I prefer to seat my jacketed and cast bullets with the Hornady seating die, because you can buy individual seating stems that better match bullet profiles.
Test your crimps! Load 5 into the cylinder, measure the overall length of the 6th. Shoot 5, then remove and remeasure the 6th to determine if your crimp is sufficient to stop or minimize crimp jump. Insufficient crimps on heavy recoiling rounds could cause your cylinder to lock up due to the bullet jumping crimp and protrude out of the cylinder and hitting the forcing cone.
If you're referring to how many times you can reload your brass, it depends on how hot your loads are and the brass manufacturer. Hornady brass is soft and I got 5 reloads out of them before the primer pockets starting getting too loose, that is too easy to seat primers in my opinion. Starline Brass is what I use now and have 5 reloads in some lots with no issues. Primer pockets still feel tight. The Speer reloading manual recommends Winchester brass because it is stiffer so it will not stick in the cylinder when loading the most powerful loads, and only using new brass when doing so. Also the stiffer brass will not last as long, and the case mouth will start to split. Most of my loads are as powerful as possible with minimal crimp jump to maximize reliability.
I have had slightly buckled cases because I used a too heavy of a crimp. They still fit in the case gauge and I will shoot them. Is there any problem with that? I’m using cast performance 360 & 335 gr. I am using a Redding die set. I’m using the same bullets for 460s&w using different Redding dies, but I can’t get a heavy crimp before the die touches the plate. I shot them ok, crimp profile didn’t look that heavy.
Did you happen to inspect the cartridge before crimping? Sometimes you can see the individual lube rings through the case, and some believe that is the case buckling. That is a normal and a preferred thing. That shows your sizing die is at the minimum specifications of the S.A.M.M.I. spec. That aids in bullet retention, and the confidence that it will fit in a wide variety of firearms chambered in 454 Casull. If the buckling happened after crimping, then the crimp is too heavy and the buckling will reduce case volume and would result in high initial case pressure that could be unsafe. What firearm are you using? Have you tested your crimp to see if it jumps with the load you're using? I would steer away from combination dies. The 45 colt and 454 Casull use the same diameter bullets, but the case dimensions are slightly different. Of course the 454 is longer, but the 45 Colt case diameter is larger. If I recall correctly it's only .001" larger. It's a small difference, but there is a difference. Unlike the 44mag/44special combo dies, they have the same case diameter. So are the Redding dies made to 45 Colt or 454 Casull specifications?... Freedom Arms says to avoid combo dies, so I do.
@@TheRealOLEMITE After reading your comments, I am pretty sure that the buckling happened while crimping. I use a separate crimp die. I guess I just over did it because I didn’t want to under crimp. I’m shooting them in a Ruger Alaskan, but I will check for diminished case capacity first. I think the buckling is minor. At this stage, I’m only loading six rounds at a time and then testing them, that way I’m not stuck with loads I’m not happy with. Thanks for the videos and the reply.
I checked my dies, they are Redding pro series 45 colt/454 combination dies which I use for both. For 460 s&w I use a Redding pro series set for 460 (only).
I wouldn't say more or too much pressure, but "...insures that the propellant ignites completely achieving higher velocities and cleaner burning." Also of course "...to prevent bullet jump..." That is directly from the Speer Reloading Manual. I wanted to load up some plinking rounds for the 45-70, and I was getting squibs. I had unburnt power in the barrel. It was because my crimp was too light and all the powder was not burning before the bullet left the case. I increased the crimp on the remaining rounds and no more squibs. Do you notice flash burns on some of your cases after firing? A weak crimp will allow the bullet to exit the case before the proper pressure to build up, and not allowing the case to expand fully in the cylinder which results in flash burns down the case. Since using the Neckdown crimp, no more flash burns for me. How's that my brother?
Lee has what they call a "factory crimp" die. That use to be my go to crimp until I found the RCBS NECKDOWN Crimp. I compared these crimps in my 454 Casull Crimp Jump video years ago, and the RCBS has been the winner ever since.
NICE.... I was having a hard time trying to find a decent video on crimp die set up for my 454 reloads.... THANKS VERY MUCH
Glad it was helpful.
Very informative as are all of your videos.
Thanks!
nice video. Have you measured the velocity of a minimal crimp versus full crimp? that is, velocity being relational to pressure. thanks again for your great videos and explanations.
Thanks for making this video
The 'neck down' crimp is with the RCBS die? And which seater die/plug do you use for the wide nose hard cast bullets?
The Neckdown Crimp is produced with the RCBS seating/crimp die. I removed the seating plug because I don't use it to seat my bullets. I prefer to seat my jacketed and cast bullets with the Hornady seating die, because you can buy individual seating stems that better match bullet profiles.
Wow! That's a lot of crimp. Maybe I should crimp more.
Test your crimps! Load 5 into the cylinder, measure the overall length of the 6th. Shoot 5, then remove and remeasure the 6th to determine if your crimp is sufficient to stop or minimize crimp jump.
Insufficient crimps on heavy recoiling rounds could cause your cylinder to lock up due to the bullet jumping crimp and protrude out of the cylinder and hitting the forcing cone.
How many loads do you use for your 454 brass, in general?
If you're referring to how many times you can reload your brass, it depends on how hot your loads are and the brass manufacturer.
Hornady brass is soft and I got 5 reloads out of them before the primer pockets starting getting too loose, that is too easy to seat primers in my opinion.
Starline Brass is what I use now and have 5 reloads in some lots with no issues. Primer pockets still feel tight.
The Speer reloading manual recommends Winchester brass because it is stiffer so it will not stick in the cylinder when loading the most powerful loads, and only using new brass when doing so. Also the stiffer brass will not last as long, and the case mouth will start to split.
Most of my loads are as powerful as possible with minimal crimp jump to maximize reliability.
@@TheRealOLEMITE thanks for the reply. I’m going to use magtech (CBC) brass. Greetings from Brazil
@@pedrojacome4106 I love Mag Tech brass.
I have had slightly buckled cases because I used a too heavy of a crimp. They still fit in the case gauge and I will shoot them. Is there any problem with that? I’m using cast performance 360 & 335 gr. I am using a Redding die set. I’m using the same bullets for 460s&w using different Redding dies, but I can’t get a heavy crimp before the die touches the plate. I shot them ok, crimp profile didn’t look that heavy.
Did you happen to inspect the cartridge before crimping? Sometimes you can see the individual lube rings through the case, and some believe that is the case buckling. That is a normal and a preferred thing. That shows your sizing die is at the minimum specifications of the S.A.M.M.I. spec. That aids in bullet retention, and the confidence that it will fit in a wide variety of firearms chambered in 454 Casull.
If the buckling happened after crimping, then the crimp is too heavy and the buckling will reduce case volume and would result in high initial case pressure that could be unsafe. What firearm are you using?
Have you tested your crimp to see if it jumps with the load you're using?
I would steer away from combination dies. The 45 colt and 454 Casull use the same diameter bullets, but the case dimensions are slightly different. Of course the 454 is longer, but the 45 Colt case diameter is larger. If I recall correctly it's only .001" larger. It's a small difference, but there is a difference. Unlike the 44mag/44special combo dies, they have the same case diameter. So are the Redding dies made to 45 Colt or 454 Casull specifications?... Freedom Arms says to avoid combo dies, so I do.
@@TheRealOLEMITE After reading your comments, I am pretty sure that the buckling happened while crimping. I use a separate crimp die. I guess I just over did it because I didn’t want to under crimp. I’m shooting them in a Ruger Alaskan, but I will check for diminished case capacity first. I think the buckling is minor. At this stage, I’m only loading six rounds at a time and then testing them, that way I’m not stuck with loads I’m not happy with. Thanks for the videos and the reply.
I checked my dies, they are Redding pro series 45 colt/454 combination dies which I use for both. For 460 s&w I use a Redding pro series set for 460 (only).
I seat and crimp in separate operations
Does this add more pressures when shooting?
I wouldn't say more or too much pressure, but "...insures that the propellant ignites completely achieving higher velocities and cleaner burning." Also of course "...to prevent bullet jump..." That is directly from the Speer Reloading Manual.
I wanted to load up some plinking rounds for the 45-70, and I was getting squibs. I had unburnt power in the barrel. It was because my crimp was too light and all the powder was not burning before the bullet left the case. I increased the crimp on the remaining rounds and no more squibs.
Do you notice flash burns on some of your cases after firing? A weak crimp will allow the bullet to exit the case before the proper pressure to build up, and not allowing the case to expand fully in the cylinder which results in flash burns down the case. Since using the Neckdown crimp, no more flash burns for me.
How's that my brother?
How do you like that press I’m really thinking about getting one for loading 460 s&w
The press is great and its held up fine.
Crimp mine that way as well
Love to pop off some entertainment rounds with you sometime.
Anything is possible, and you wouldn't be the first...
@@TheRealOLEMITE
Like to chat via email if an option. What forums are you active in. I'll pm. Sniper's, nwfirearms, calguns? Up in Washington state.
Lead farmer needs an adventure up North.
@@valvestroke1 olemite@yahoo.com
Sent you a quick email. Not sure if you're busy, went to spam folder or you didn't like. Just wanted to say thanks for your quality content.
Lee makes neck down crimp dies
Lee has what they call a "factory crimp" die. That use to be my go to crimp until I found the RCBS NECKDOWN Crimp. I compared these crimps in my 454 Casull Crimp Jump video years ago, and the RCBS has been the winner ever since.