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Hot Topic (More than 10 Replies) BPTR in 32-20 (Read 1605 times)
oneatatime
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Re: BPTR in 32-20
Reply #15 - Dec 28th, 2018 at 5:53pm
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Nero, did you miss the 32-20 part;-)
  
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JS47
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Re: BPTR in 32-20
Reply #16 - Dec 28th, 2018 at 9:48pm
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I have a tapered 165 gr. bullet that I breach seat in my CPA with a Douglas 16 twist barrel using 11 1/2 gr. 4227. I got to do my first long range shooting with it a few days ago. The targets were a steel pig at 300 meters and an 18" diameter rock at a lasered 570 yds. Once I got the Kelly sight dialed in I was able to hit both targets consistently. This was the first time I have shot on this range. The fellow I'd just met who was doing the spotting said that I was getting some pretty impressive groups on the targets for a 32-20 at those ranges. The point I'm trying to make is that the 32-20 with the heavy for caliber bullet that Martini Belgium mentions can be accurate at extended ranges. It will ring the steel and smoke the rock but the down side is the lack of weight to knock over a steel target.

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"I'll be happy to contribute to the wolf recovery program, 180 grains at a time"  Unknown western rancher
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beltfed
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Re: BPTR in 32-20
Reply #17 - Dec 29th, 2018 at 12:07am
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AND not much of an impact indication OFF the steel
in the dirt at long range.
But Love the 32-20 at shorter ranges
beltfed/arnie
  
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MartiniBelgian
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Re: BPTR in 32-20
Reply #18 - Dec 29th, 2018 at 2:01am
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Yes, spotting shots might be a dificult one in iffy conditions like 300 with mirage - the holes will be harder to spot than .45's for sure.
No problem with spotters in the butts, but when you have to spot the shots yourself...
« Last Edit: Dec 29th, 2018 at 2:11am by MartiniBelgian »  
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MartiniBelgian
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Re: BPTR in 32-20
Reply #19 - Jan 4th, 2019 at 1:02am
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Anothher try yesterday evening, another load this time - the 308403 Pope 171gr 30:1 bullet, but not used as intended: resized to .309 and semi-breechseated. In other words, I used a plugged case to seat the bullet in the chamber, then seated the powder-charged case behind the bullet. The bullet base is still partially inside the case, however.

As usual, results prone with sling, at 75m. 10 shots fired, so the 10-ring holds 6 shots (the shot cutting the 10-ring at 7 o'clock is not counted as a 10).

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Another difference too: the cleaning rod now has a larger-diameter jag, this definitely seemed to help accuracy. probably made sure the barrel was cleaner after wiping, 2 patches with WD40.

  
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Barrabruce
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Re: BPTR in 32-20
Reply #20 - Jan 11th, 2019 at 7:46am
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Excellent.
Are you using a bore pig and a deralin  rod?

Paint me green being able to sight ; let alone shooot that well with irons.
Cool
  
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MartiniBelgian
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Re: BPTR in 32-20
Reply #21 - Jan 12th, 2019 at 4:38am
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Bruce,

For the moment I'm just wiping with 2 patches moistened with WD40, and to my surprise it does work quite well.  It also has the advantage of keeping water out of you barrel, but I do intend to try water-moistened atches and bore pigs too.  Especially with paper-patch bullets that might be needed...
  
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MartiniBelgian
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Re: BPTR in 32-20
Reply #22 - Jan 14th, 2019 at 1:55pm
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Another conclusion:  When semi-breechseating a bullet, difference in bullet diameter (causing more of less seating resistance) will dramatically afffect accuracy:  Last session I experienced  so, and all bullets that took more resistance to seat (using a plugged case), were outside the group.  this with a 171gr 30:1 alloy 308403 bullet.
I kept track of seating resistance and sequence, and this became dramatically clear.
Measuring bullet diameter adfterwards confirmed my suspicions - I probably had an issue with the mould while casting, which resulted  in slightly larger-diameter bullets.  And the resulting consuequences showing onn the target  Undecided
« Last Edit: Jan 14th, 2019 at 3:39pm by MartiniBelgian »  
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