454 Ruger Redhawk crimp jump

[rem44m]

I'm wondering if any of you big bore enthusiasts have any input on factory ammo for the 7.5 in Redhawk while in Grizz country. I have a lot of experience with big bores and recoil so recoil is not something I'm particularly concerned with.

Most of my concerns come from crimp jump on the 454 which is uncharted territory for me. All the crimp jump info I find is related to the Alaskan and I don't know how this applies to the 7.5 inch Redhawk.

I bought a box of 335 grain hard cast hunter loads from Corbon so if any of you have experience with this load/gun combo I'd be interested to hear. Otherwise I guess I will have to wait till I get the chance to go light some off and see if the OAL changes.

 

[lloveless]

Go to www.rugerforum.com and ask this question under revolvers. Many experienced people on board.
ll

 

[buck460XVR]

I think you should be fine. Corbon has plenty of experience in building quality dangerous game cartridges. Their pics of that round show a very heavy roll crimp.

 

[Drail]

deleted

 

[Grumulkin]

I would be surprised if you had crimp jump with Corbon ammo. Handloads are another matter. With full power 454 Casull handloads, you better be buying a Lee Factory Crimp Die.

 

[Coal Dragger]

Meh, any good taper or roll crimp die adjusted to deliver a neck down crimp into a wide cannelure or a deep crimp ring will work just fine. If you are seating and crimping in one step you won't be able to do this. I use a Redding competition seater die, and then follow up with a Hornady taper crimp die adjusted to deliver a heavy neck down crimp. Works like a champ, and I have yet to have any jump issues with full power loads and 360gr bullets. I haven't tried any 395's yet but I don't imagine I would have any issues with those either.

In order to do this an investment must be made in another die to be used solely for crimping.

 

[rem44m]

Hopefully I attached this picture properly. I apologize if the picture is sideways when I take pics from my phone they often upload that way.

Anyways you should see one out of the box 454 round and the other three are rounds that were loaded in the cylinder while I fired 9 rounds. Meaning all that crimp jump happened in only 9 recoils. The round 2nd in from the right tied up the cylinder after 7 rounds fired.

Absolutely unacceptable in my opinion. This was with Factory loaded CorBon 335 gr hard cast bullets loaded into a 7 1/2 inch Ruger Super Redhawk.

Buffalo Bore is way ahead of the competition in this regard and in my opinion all others.

 

[bergmen]

Meh, any good taper or roll crimp die adjusted to deliver a neck down crimp into a wide cannelure or a deep crimp ring will work just fine. If you are seating and crimping in one step you won't be able to do this. I use a Redding competition seater die, and then follow up with a Hornady taper crimp die adjusted to deliver a heavy neck down crimp. Works like a champ, and I have yet to have any jump issues with full power loads and 360gr bullets. I haven't tried any 395's yet but I don't imagine I would have any issues with those either.

In order to do this an investment must be made in another die to be used solely for crimping.

This is good to know, I'm having sporadic crimp jump from time to time. I am simply using the roll crimp that comes with the RCBS carbide die set.

I do have a custom .45 Colt Lee collet-style FCD that I want to experiment with for the .454. I just need a .098 thick spacer to try it out (in the process of making one now).

Dan

 

[osteodoc08]

The 454 in lighter weight guns need a very very firm crimp. In my hand loads I try to get a firm roll crimp in the crimp groove or cannelure of the bullet. The cast bullets my dad made up before his passing have a crimp groove and I adjust the OAL to fit the crimp in the groove. I've figured out the amount of crimp needed and Ive been GTG since.

The ammo pictured is unacceptable IMHO.

 

[Coal Dragger]

Rem44m,

The crimp on those looks to be OK, not sure why they are pulling out of the cases. Maybe the bullets don't have enough neck tension. You can have a hard crimp and sometimes it is not enough.

When I load compressed charges of IMR4227 or H110 under 300+gr bullets I quickly find out if I forgot to full length resize any brass because the powder will push the bullet back out a bit. If the brass being used by CorBon isn't giving good neck tension it could be a problem. I notice in your photo you can't see the outlines of the driving bands and lube groves of the bullet under the brass. My reloads will very clearly show those driving bands under the brass, which tells me that my resizing die is squeezing the brass down more than factory brass. You need that neck tension plus a heavy crimp.

Also a bullet that heavy, in a gun recoiling that much, shouldn't necessarily be expected to put up with much more than a cylinder full of recoils before the bullets might start to pull.