Well I slugged my barrel with some soft lead and it was .458 od at the rifling. That was what the manufacture said it should be, so are you guys saying the lead should still be .459 or .460 and force itself to .458 during firing?
Thanks
350Gr
Well I slugged my barrel with some soft lead and it was .458 od at the rifling. That was what the manufacture said it should be, so are you guys saying the lead should still be .459 or .460 and force itself to .458 during firing?
Thanks
350Gr
Yep, go with the .460.
Just the Ol'Coot's opinion.
But the cast boolit sized to that dia. will have zero issues fiting the .458 barrel.
However, 9,3X62AL says it pretty well, and has plenty of experience with the 45/70 up to an including shooting the "Mastadon Slayer."
Now, dat do be one beeeeeg boolit! It's effectiveness on Mastondons is verified by the fact they are now few and far between.
Crusty Deary Ol'Coot
what gun? that's important as their are at least 3 different levels of 45-70 loads - trap door, lever, ruger.
What's the mastodon slayer? I've shot the Led Zeppelin which is a 600 (actually 555 to 630+ grain, depending how they cut the mold) grain bullet. I'm hoping to get some NEI 750's from one of our own (cant ask for a better community). How does the mastodon slayer rank with the Led Zeppelin and the NEI big bertha (I think its #351?)
The Mastadon Slayer is what 9.3X62AL calls the big boys he has a mold for. Just put one on the digital scales and it came up at 534gr. lubed with Gas Check.
CDOC
I have a SS Marlin Lever Evolution 45-70 I size my RCBS 300gr RNFP boolits to .460 with my Star boolit Sizer.
I went with .460 to keep from making the grease grooves any shallower the less sized the better as long as they are round.
I had one of the guys on the forum make the die for me.
They shoot great out of the Marlin it is suppose to have the Ballard rifling not the microgroove that other Marlin rifles have.
NRA Life Member
to be different I'm using the Lyman 457191 mold that casts a 292 gr RNFP. I am using this for cowboy action and over a light loading of powder get a very gentle cartridge (shoulder surgery x2) ended my days of big bore, heavy recoil shooting.
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Thanks again for all the input. I am as CB calls it a boolit mold and I recon for good reason, this lead stuff is totally new to me. I slugged my barrel, ordered some lead tools and am awaiting there arrival...but these days that takes plenty of patients!
350gr. Welcome to the forum!
When I started shooting the 45-70.
I was shooting a Marlin SS and got good
results with the Gould 330gr. boolit.
Used Star-line brass.
CCI-200-Lr. primers.
IMR-4198-37grs.
OAL=2.542
You would not be sorry for any reason.
Last edited by WHITETAIL; 02-23-2013 at 12:36 PM.
Beer is proof that God loves us and wants us to be happy!
Ben Franklin
Yup, I'll let you all know when I do my first...still waiting patiently.
I also like the lyman 330gr gould......Joe
An excellent book to read is Beartooth Bullets Technical Guide by Marshall Stanton. And there are many more out there. I hope you enjoy reading. I had to make a bigger bookcase just for all my hunting/shooting/reloading/casting books.
https://beartoothbullets.com/bulletselect/index.htm
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And when the Persian said their arrows would "block out the sun" The Spartans said "Then we will have our battle in the shade!"
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |