crimping??

mjcurry

mjcurry

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hi their i will be purchasing a marlin in 45-70 and i will be reloading for this also. i have never reloaded but i have read the manuals over and over. i will be getting a lee aniversary kit but im worried about crimping. it seems like it would be a easy thing to fack up. is their anybody in the durham/toronto area that reloads .45-70 and crimps and would be willing to show me. im a hands on learner so reading alwasy jumbles me a bit. thanx
 
Crimp for the heavy recoiling rifles, unless it's a single shot and then you may get away with it.

Quite often crimping aids in complete combustion.

Experiment.

RePete.
 
Lee makes a crimping die and works well. Its handy when reloading since the bullet wont leave the cartridge if you forget to add powder. Not that Ive ever done that. :rolleyes:
 
The crimping die will come with the set or should. Invest in some good reloading manuals and read lots. I might suggest you hook up with some reloaders in your area and spend some time with them it will give you a good idea on the hooby you are about to join. Must be a gun range in your area. I am sure a visit to one of them will give you an opportunity to meet guys who reload.

Take Care
 
My first set of dies were Hornady and they didn't crimp all that well but it wasn't a serious concern as I was using a Remington Rollingblock replica. Now however as I'm using A Marlin 1985GS, crimping is a must. As a result, I purchased a three die ste of RCBS dies. All the difference in the world in crimping ability compared to the Hornady set.
 
I ordered mine from Higginson, np. Its the factory crimp die. A little different from the crimp die that comes with the set. I also like the RCBS expander die as it makes a channel and I find its gentler on the brass. I bought a conversion kit for my Dillon and its harder on the brass. Much.
 
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Another thing to remember when crimping, if you want to do a good job make shure all the brass is exactly the same length, they will require trimming.
bigbull
 
Your best bet is too search other forums for a load that someone is allready perfected with the 45-70 in Model rifle you have(this will save you alot of time and money)...just reduce your starting loads and work up gradually. I found that .5 grain under the max worked great for my 444.

I did a search for my 444 Marlin on this forum and came up with a GREAT load....ordered my components to match and followed RCBS die instructions and was shooting great groups right off the hop.


As far as crimping good advice so far...

Keep all brass at same length.

Seat all bullets first.

Adjust die(according to die manual) for crimping and run all seated cartridges through the crimping operation.



www.marlinowners.com/board/index.php


401159.JPG
 
Loadin' and crimpin'

Seat bullet to correct length first and then crimp as a seperate step. After you have seated bullets to the correct depth( usually on a crimping groove) remove the bullet seating stem.....back die almost out of the press.....run loaded round to the top of ram stroke......screw die down until you feel resistance.....that is the crimping step in the die contacting the case mouth...another half turn on the die and "Bobs your uncle"
 
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