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texasmac
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Browning .40-65 Bullet Design & Load Specs
Nov 23rd, 2017 at 9:15pm
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Hey guys,

If you own a Browning .40-65 BPCR you may be interested in an article I just posted.  Titled, Bullet Design & Loading Specifications for the Browning .40-65 BPCR it can be accessed at the following link.

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Wayne
  

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marlinguy
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Ballards may be weaker,
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Re: Browning .40-65 Bullet Design & Load Specs
Reply #1 - Nov 23rd, 2017 at 9:59pm
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Thanks for the write up!
Was wondering if any elevation adjustment was made to see if the Saeco 740 bullet might be hitting higher or lower? You reported no shots on target at 500 yds., but I see nothing to tell me if the group was possibly low or high, vs. just too large to hit on paper?
When testing loads at longer distances I mount my targets on large butcher paper, just in case they might strike low or higher than other loads, but still may show small groups.
  

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texasmac
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Re: Browning .40-65 Bullet Design & Load Specs
Reply #2 - Nov 24th, 2017 at 2:21am
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marlinguy wrote on Nov 23rd, 2017 at 9:59pm:
Thanks for the write up!
Was wondering if any elevation adjustment was made to see if the Saeco 740 bullet might be hitting higher or lower? You reported no shots on target at 500 yds., but I see nothing to tell me if the group was possibly low or high, vs. just too large to hit on paper?
When testing loads at longer distances I mount my targets on large butcher paper, just in case they might strike low or higher than other loads, but still may show small groups.


Vall,

Read the article again & you'll note that 2 out of 10 of the SAECO 740 bullets hit within a ram size target, which was at 500 meters, not yards.

What was not noted in the article was that the actual target was a large piece of cardboard which was much larger than a ram-size target.  There was an 8" bull in the center.  All 10 shot from each type of bullet hit the large target and then a ram target cut out of cardboard was overlayed over the center of the hits to count that ones which would have hit the ram.

Wayne
  

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art_ruggiero
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Re: Browning .40-65 Bullet Design & Load Specs
Reply #3 - Nov 24th, 2017 at 10:25am
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thankyou    art ruggiero
  
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marlinguy
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Re: Browning .40-65 Bullet Design & Load Specs
Reply #4 - Nov 24th, 2017 at 10:31am
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I must be blind. I've read through it multiple times and only mention I saw was targets being mounted on separate poster board for each bullet test. Couldn't find any mention of the size of the backers, or anything to do with overlaying a ram?
  

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texasmac
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Re: Browning .40-65 Bullet Design & Load Specs
Reply #5 - Nov 24th, 2017 at 11:56am
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marlinguy wrote on Nov 24th, 2017 at 10:31am:
I must be blind. I've read through it multiple times and only mention I saw was targets being mounted on separate poster board for each bullet test. Couldn't find any mention of the size of the backers, or anything to do with overlaying a ram?


Vall,

Read my previous post again in which I said, "What was not noted in the article was that the actual target was a large piece of cardboard which was much larger than a ram-size target.  There was an 8" bull in the center.  All 10 shot from each type of bullet hit the large target and then a ram target cut out of cardboard was overlayed over the center of the hits to count that ones which would have hit the ram."

Wayne
  

NRA Life (Benefactor & President's Council) Member, TSRA Life Member, NSSF Member, Author & Publisher of the Browning BPCR book
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