My first 45-70....

Items of primary interest to the new BPCR shooter. Loading, BP SAFETY, sources of materials, rifles, etc.
Kurt
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JoinedCOLON Mon Nov 21, 2005 8:05 am

Re: My first 45-70....

Post by Kurt » Tue Dec 10, 2013 1:58 pm

Brent wroteCOLONKurt, BV does not mean beveled base because the bullet doesn't have one. After that, I can't guess. It's a nice bullet for hunting. I might use it in a lever gun to go after my AK moose in 2015.
Brent,

I pulled my 121 mould and looked at it and it is marked 457-121 BV also.

jgh4445
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JoinedCOLON Sat Jun 16, 2012 4:34 pm

Re: My first 45-70....

Post by jgh4445 » Tue Dec 10, 2013 4:23 pm

Charlie, I got the Lyman 3 die set with the M die.

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montana_charlie
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LocationCOLON West of Great Falls, Montana

Re: My first 45-70....

Post by montana_charlie » Wed Dec 11, 2013 11:32 am

jgh4445 wroteCOLONCharlie, I got the Lyman 3 die set with the M die.
Well, that's enough to get you started ...
Best not to buy a custom expander plug until you know what size you want.

CM
Retired...twice. Now, just raisin' cows and livin' on borrowed time.

jgh4445
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JoinedCOLON Sat Jun 16, 2012 4:34 pm

Re: My first 45-70....

Post by jgh4445 » Tue Dec 31, 2013 5:51 pm

Cast my first bullets ( boolits) for the 45-70 using the Lyman 457193 mold. I used 29 lbs of pure lead and 1 lb of pure( 99.875) tin from a metallurgy lab. the mold filled out nicely and dropped diameters of 459 to 460 pretty consistently. I was expecting a 420 or so gr weight but I got a real consistent 405 to 407 weight. That was pouring 4 ingots of a lb each that yielded 50 bullets when I quit. Probably had enough left for 4 or 5 more bullets.

rbertalotto
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Re: My first 45-70....

Post by rbertalotto » Wed Jan 01, 2014 9:35 am

Whats the status on the rifle. Did you receive it yet. My dealer is still saying they are not shipping them for a few more months...???

jgh4445
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Re: My first 45-70....

Post by jgh4445 » Wed Jan 01, 2014 11:23 am

Yes, I got it. Go back to the General Discussion Of BCPR thread. Open it and go to "Agood point blank range" thread. Last post in that thread tells the story.

rbertalotto
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Re: My first 45-70....

Post by rbertalotto » Wed Jan 01, 2014 11:53 am

Beautiful rifle! Looks like it's a shooter too!

I need to speak to my dealer tomorrow. On Friday he called his distributors and was told once again that Lyman will be shipping them in March............ :| UGH!

jgh4445
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Re: My first 45-70....

Post by jgh4445 » Wed Jan 01, 2014 1:31 pm

Thanks. I just checked Buffalo Arms Co and they are showing a 1/19 14 delivery date for the next rifle in...you might give them a call.

rbertalotto
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Re: My first 45-70....

Post by rbertalotto » Wed Jan 01, 2014 1:43 pm

Thanks!

jgh4445
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Re: My first 45-70....

Post by jgh4445 » Sun Jan 19, 2014 4:09 pm

Chamber casting.jpg
Chamber casting.jpg (7.22 KiB) Viewed 2451 times
I did a chamber casting today, my first ever. The numbers I got for my chamber are:
Case length 2.119
Base Dia .505
Mouth Dia .481
Bore Diameter is .458 measured both at the chamber and I did a casting of about 2 inches deep at the muzzle. It was also .458
Looks to me like the rifling starts at the case mouth

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montana_charlie
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Re: My first 45-70....

Post by montana_charlie » Mon Jan 20, 2014 7:40 pm

jgh4445 wroteCOLON
Chamber casting.jpg
Case length 2.119
Next trick is to measure a case for length, before, and after, firing it.

CM
Retired...twice. Now, just raisin' cows and livin' on borrowed time.

jgh4445
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Re: My first 45-70....

Post by jgh4445 » Mon Jan 20, 2014 9:59 pm

OK, as soon as my sight gets here I'll do just that. I have a box of factory rounds I only shot a few out of. Could I do that with a loaded factory round and a fired case from the same box?

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montana_charlie
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Re: My first 45-70....

Post by montana_charlie » Tue Jan 21, 2014 11:23 am

jgh4445 wroteCOLONOK, as soon as my sight gets here I'll do just that. I have a box of factory rounds I only shot a few out of. Could I do that with a loaded factory round and a fired case from the same box?
If you measure the length of ALL of the unfired cartridges ... and if they ALL come out as the same length, then you could (probably) trust the results from a new case and a fired one.

If the new ones vary in length by any amount, it's best to use a single case for the two measurements.
You measure the length before firing so you have a reference point.
The case should be expected to shorten by some amount when it expands at firing.
The final measure is to see how much shorter it has become ... and how much shorter than the chamber it is.

CM
Retired...twice. Now, just raisin' cows and livin' on borrowed time.

KHA
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Re: My first 45-70....

Post by KHA » Tue Jan 21, 2014 2:07 pm

jgh4445 wroteCOLON
Chamber casting.jpg
I did a chamber casting today, my first ever. The numbers I got for my chamber are:
Case length 2.119
Base Dia .505
Mouth Dia .481
Bore Diameter is .458 measured both at the chamber and I did a casting of about 2 inches deep at the muzzle. It was also .458
Looks to me like the rifling starts at the case mouth
.458 bore diameter is kind of a odd caliber :D

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