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Discussion Starter #1
Marshall,

Since you asked about my 416 Taylor in another thread, I thought I'd start a new one.

First off, I'd like to make it clear that I fairly new at loading cast bullets in rifles.  I've been reloading for about 7 years, and have loaded hundreds (I know, not really a big number) of lead bullets in my .45 ACP.  

Why the disclaimer?  Because I haven't gotten very good accuracy with these cast bullets yet.  I want everyone to know that the problem most likely lies with me, not Beartooth.

Okay, the data...

All bullets were 335gr; .416 LFN's.  Rifle is a M70 Classic, with 23" Douglas barrel, 1-12" twist.  Brass was brand new Winchester 458WM necked down to .416", Fed 215 primers.

30gr of SR4759 clocked 1622fps.
Accuracy was 5-6 inches.  This load did not fully fire-form (sharpen the shoulder) the new brass.  It was very easy on the shoulder!

35gr of SR4759 was not chrono'd due to rain.  
Same accuracy, brass was properly fire-formed.

62gr of IMR3031 clocked at 2350fps.
Same accuracy, and quite smokey!

All the bullets were seated long enough to make it slightly hard to close the bolt.  But due to very long throating, none were touching the rifleing.  I think they were just getting wedged into the throat, and contacting on the straight side of the bullets.  There was one lube groove showing after seated, and I wiped the lube off of the exposed portion of the bullet.  There didn't appear to be any leading.  I attribute that to the manafacture (thanks Marshall!) and the gas check.

Being new at this part of the game, I'm ready to listen to any advice about shooting lead bullets at the 2400 fps speed.

Thanks Gents!
 

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Brian, do you think the 1-12" is the best for the 416taylor? Is your gun a standard or magnum length action? Have you seen accurate's #2 manual and the reloading data for the 416 taylor. I went to your site and my computer wouldn't load it right, so with 400g bullets, you reach 2400fps right? I figure with 300g barnes X's and 400g solid's it's going( I haven't got one yet, I think it will be on a win mdl 70 action) to be a great bear and if I ever go to africa, a good buffalo rifle. Really interested in this caliber,  doug  
 

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Brian,

Well, it looks like some serious load development is in order here!

First observation would be to suggest using powders with a slower burning rate if you want to reach top velocities.   Cast bullets need a lower pressure curve than do jacketed bullets if you are to acheive gilt edge accuracy.

I would recommend using these as starting loads when reduced 5%, and seating the bullets as you have, as far out of the case as possible in relationship to the throat length of your rifle.  Accuracy with the .416" cartridges is generally very easy to acheive with cast bullets.   Begin with a 2200 fps load and work up!

75.0g IMR 4064/WLRP/2250 fps 23" Bbl.
67.0g IMR 4320/WLRP/2325 fps 23" Bbl.
68.5g AA#2520/WLRP/2265 fps 23" Bbl.

This should give you something else to work upon.

Hope it helps!

God Bless,

Marshall
 

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BW Try using Re15. Data is about the same as 4064. You might even try some 4831, a case full would probably give good accuracy, however velocity will be low. Make sure you are using an "M" die to expand the case mouth otherwise you are wasting good bullets.
 

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Discussion Starter #5
Moose,

Reloader 15 is my powder of choice for those nasty jacketed bullets. <!--emo&;)--><img src="http://beartoothbullets.com/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'><!--endemo-->

I will try some with Marshalls bullets though.

Are the "M" dies universal?  Since the 416 Taylor is a wildcat, I doubt they have any in stock.  Perhaps a 416 Remington die?  No, that is too long I imagine.  I'd need a short .416 cartridge die.  Honestly, I don't know, I've never used a "M" die, although I know what your talking about.  Keep meaning to send a few cases to Lee, so they will make me up a Factory Crimp die too.
 

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Brian,

Moose's suggestion of the "M" die is fundamental to bottle-neck cast bullets.   I didn't mention it, as I thought you were probably already using one!  Get an "M" die and you'll see your group sizes shrink.  It facilitates concentric bullet seating and prevents lead shaving from the case mouth.   Yes, well chamfered cases help, but won't eliminate the lead shaving that happens during bullet seating.

If you don't find the die you need in Lyman's catalog or their website www.lymanprducts.com, then call their customer service at 1-800-22 LYMAN.  Talk to Karen Griffin, she is their customer service manager, tell her I sent you, and they can custom make you a die fairly quickly and reasonably!

Moose made a great point and one to follow up on!

God Bless,

Marshall
 

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Discussion Starter #7
Marshall & Moose,

Thanks for the suggestions!  I've e-mailed Lyman, to see if they will make a "M" die for my 416 Taylor.  I'll let you know what they say.
 
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