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Thread: Sight settings

  1. #21
    Boolit Buddy
    Join Date
    Oct 2015
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    125
    Looks like decimal points are shifting around...Part of my group measured 1.3 inches and not .13 inches. The flyers were 8 inches and 14 inches low.
    Earlier I made a cast of the chamber and about an inch into the rifling. The chamber, leade and throat look fine. It looks like a sharp transition from the end of the chamber to the rifling, typical of what I have read about Browning BPCR chambering. Cases were stretched and trimmed .005" short. Mouthe's of cases were chamfered, powder and wads inserted then loaded cases were then run through a Meachum neck die .125" to have very light neck tension.Paper patched bullets, (OfficeDepot Translucent Tracing Paper #25 pound. wrapped to .450 dia. it is a nice smooth press fit into the chamber.) inserted with no paper cutting or bunching. The bore looks good and there is no lead in the bore.
    Today I loaded one round and the only thing changed was the wad and powder charge. The wad stack consisted of one Walters wad .063" thick and a news print wad over that. Powder charge adjusted for .125" bullet seating depth. The charge was 76.5gns Swiss 1.5. Prior to shooting this load into the pool the bore was cleaned of oil and two tight patches after that. the patches were clean and the bore was dry. I fired into the pool and the recovered bullet looked like the previous ones....I'm somewhat at a loss here! I wonder if the patch material may not be tough enough. I could not find the wad.
    Thanks guys...Richard

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  2. #22
    Boolit Buddy
    Join Date
    Oct 2015
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    125
    BTW the diameter of the Walters wads are .463"
    Regards, Richard

  3. #23
    Boolit Buddy
    Join Date
    Oct 2015
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    125
    Hi Guys,
    I wonder if the bullet I’m using may be too small in diameter at .4427” as cast. At 1:16 maybe the bullet is not bumping up fast enough or has too far to bump up. Is my thinking on this make any sense.
    Thanks a bunch, Richard

  4. #24
    Boolit Master
    Join Date
    Dec 2008
    Posts
    1,514
    Flatsguide, I am shooting what I think is the same bullet as you. The BACO 443530E in 16:1. Is that Walters wad an LDPE or a veg card wad? I find that the LDPE is definitely better.

    I don't shoot the same chamber as you though. Mine are specially cut for bore diameter PP bullets and are much tighter so there is less room for the bullet to bump up into.

    I own one rifle, chambered for grease grooved bullets with a pretty fat chamber. I could never get this one to shot bore diameter PP bullets without a lube cookie. Everything else gave gas cuts.

    Chris.

  5. #25
    Boolit Master Don McDowell's Avatar
    Join Date
    Jan 2008
    Location
    Hell Gap Wy
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    5,207
    I would think you either need a larger diameter bullet for your chamber, or try a .060 fiber wad on the powder a grease cookie and a .030 wad under the bullet. Or in place of the grease cookie and .030 wad use a 1/8 inch felt wad.
    GUSA #6
    People will forget what you said...
    People will forget what you did...
    But People will NEVER forget how you made them feel

    Want to join in adult conversation about shooting the old ways without the hysterics associated with other places?http://historicshooting.com/mybb/index.php

  6. #26
    Boolit Buddy
    Join Date
    Jul 2010
    Location
    Portsmouth Ohio
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    228
    Have you tried 82 grains of Swiss? Takes some practice to get it in there. 12 second pour through the drop tube. I then place a wad made of construction paper on there so that I can compress it enough to get a Polly wad in there. Compress it once with the construction paper wad then I seat that Polly wad on there and compress that. Iím shooing a longer and fatter version of your bullet through my c sharps which has a standard grease groove chamber. Wet patching to a finished diameter of .450


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  7. #27
    Boolit Buddy
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    Jul 2010
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    Portsmouth Ohio
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    Flatsguide where are your shoots at?


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  8. #28
    Boolit Buddy kens's Avatar
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    May 2013
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    coastal Ga
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    I'm watching this thread closely

  9. #29
    Boolit Buddy
    Join Date
    Oct 2015
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    125
    The problem with the gas cutting has been solved. This discussion is going on and continuing under the Paper Patch Problems thread now guys.
    Ian, the match was at Roanoke VA. Roanoke rifle and pistol club. Joe Davis was the match director. It was fun and I was made to feel at home by a lot of the shooters. I don’t know how much powder I can get into my once fired Starline cases. I’ll find out soon though.
    Regards, Richard

  10. #30
    Boolit Buddy
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    Jul 2010
    Location
    Portsmouth Ohio
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    Flatsguide thatís about 4 hours away from one of the silhouette ranges I shoot at. Depending on where you live it may be worth it to come shoot with us also. Itís near Ashland Kentucky. Over the labor day weekend we are having a 4 day shoot with 22 on Friday and big bore on Saturday Sunday and Monday. There will be a lot of paper on the ground . Be nice to get another paper patch shooter up there. If your close to the pa border there is a shoot in McDonald pa I am going to next weekend.


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  11. #31
    Boolit Buddy
    Join Date
    Oct 2015
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    125
    Ian, thanks I’ll try to make it up to Ashland in a month or so. Sounds like Labor Day will be quite the shoot.
    Best Richard

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Abbreviations used in Reloading

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