500 S&W : H110 max load how strong crimp needed?

[venax]

Hello All,

Will be loading 42 to 45 grains of H110 to propel a 325 grain 501 cassull alloy lead bullet in my new acquired S&W 500 8.375". Bullet is 325 grain TCBB from PENN BULLETS with crimp grove rated to 2100 fps.

I've read everywhere that H110 needs a very strong crimp. I only have the LEE 3 DIE SET (single stage crimp + seat). Can it (single stage crimp + seat) provide enough roll crimp for max loads of H110? I have an Redding Profile Crimp Die on order but it wont come in on time for this weekend.

I've loaded 50 rounds with Trailboss and crimp looks strong but I dont know if I need an even stronger crimp... Anyone can post a photo to a "STRONG CRIMP" so I can compare if I need even more??

 

[kennyb]

i load a lot of 500 mag with the RCBS 3 die set...no problems at all...crimp is plenty strong...a question i have is why start out at the max load?you should work up to that

 

[venax]

i load a lot of 500 mag with the RCBS 3 die set...no problems at all...crimp is plenty strong...a question i have is why start out at the max load?you should work up to that

I will start with 42 grains. I read that anything with H110 is powerful enough to need super strong crimp. I will reload 50 round and shoot them one by one to start and check OALs to make sure bullets not moving. The Lee Crimp/Seater makes a very nice roll crimp and the fact that the bullet has a deep seating - I think it'll be OK.

 

[bluetopper]

I don't recommend "working up" H110 loads anyway. It is a max powder only unlike any other I've ever dealt with. Results will be all over the place of you download more than about 3%.
Your crimp needs to only be tight enough to hold the bullets in place from the recoil of the ones previously shot in the cylinder. Your Lee dies will do a great job in doing this.

 

[Rule3]

Where did you get the load data of 43 to 45 grains of H110?

It appears that is from the Hodgdons data on line, but that is for a Barnes XPB which is not the same as the lead bullet you are loading.

The load data is probably not the same.

 

[cal50]

I crimp enough so I get no bullet jump in live rounds in the fired cylinder. I use WW 296 and load it full power with mag primer and firm crimp.