I'm starting to load 45 70 for a new marlin stbl i just bought . the problem im having is conflicting powder weight info.In the books that i have and the data on the lee dies it says to start off with 34gr's of reloader 7. All the info i have found on the net say they are starting off in the low 40's and working there way up to almost 50 grains. Should i go off the dies . This is also going to be loaded with a 405 gr. remington jsp.

thanks

If most books say start off at one point, and one random source says start lower, I'de start at the higher point. Does the highest starting weight you read exceed the max charge listed by the die set? If not your good to go

If most books say start off at one point, and one random source says start lower, I'de start at the higher point. Does the highest starting weight you read exceed the max charge listed by the die set? If not your good to go

 

 

To be more clear the only book i have with data on a 405 gr. jsp using reloader 7 is a lee book. The other is the data sheet that comes with the dies. Both the starting weight amd max load is 34 grains. Its just alot lower than some of the other loads ive seen on various forums and such .Nothing published from any manufacturer just handloads from other shooters. thanks

Reloading 45-70 can be tricky. There ar 3 different load levels, 1. for old Trapdoors and such at a low velocity, 2. for Marlin and Winchester lever actions and 3. for TC Encore or Ruger only loads. What manuals do you have? As Glenn wrote manuals will differ by a grain or two, but it sounds to me like you are getting two different load levels. I use IMR 4198 for 45-70.

I have a lee, seirra,hornady and hodgen books. I have a few rounds loaded already with 34+ grns. of the r7. my main concern is that whenn i pull the tigger they make it out the end of the barrel and hit paper. I can work the loads from there. What could be the worst outcome of too light of a load? This is what lee says to use in two different publishings. Its just not has heavy as other shooters posted on the net for the same gun. thanks

The info I found for your bullet and powder in a Marlin lever Action shows a start of 41gr and a max of 46gr.

35gr to 37 gr for a Trapdoor,

The lineman book 47 edition 45-70 for 1886 winchester and 1895 marlin only .

 

405 gr rem bullet

 

 

rx7 start 34 gr to 44 gr.

The lineman book 47 edition 45-70 for 1886 winchester and 1895 marlin only .

 

405 gr rem bullet

 

 

rx7 start 34 gr to 44 gr.

 

 

Thanks guys. Makes me feel better to see that data printed somewhere else.

The lineman book 47 edition 45-70 for 1886 winchester and 1895 marlin only .

 

405 gr rem bullet

 

 

rx7 start 34 gr to 44 gr.

 

 

Thanks guys. Makes me feel better to see that data printed somewhere else.

Reloading 45-70 can be tricky. There ar 3 different load levels, 1. for old Trapdoors and such at a low velocity, 2. for Marlin and Winchester lever actions and 3. for TC Encore or Ruger only loads. What manuals do you have? As Glenn wrote manuals will differ by a grain or two, but it sounds to me like you are getting two different load levels. I use IMR 4198 for 45-70.

+2

 

As Tim noted there are three distinct performance/power categories for the .45-70. One duplicates the original blackpowder loading for older guns, the next level up for lever-actions, and finally one suitable for the strongest of actions. 4198 is a good powder for the larger, straight walled cases.

 

Join the Marlin owners forum and key on the .45-70 forum. Lots of knowledgeable folks who are willing to share some good recipes for loads with various bullet weights and styles that work and don't work in Marlin's be they Microgroove or Ballard rifled.

http://www.marlinowners.com/forums/index.php?board=56.0