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Breach Seating Depth Survey (Read 21344 times)

westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11455 Location: Why, out West of course Joined: May 29^th, 2006	Re: Breach Seating Depth Survey Reply #15 - Feb 25^th, 2011 at 11:16pm	Print Post
	jfeldman wrote on Feb 25^th, 2011 at 11:00pm: Plus one to Frnkeore. Mine measures at .042 Regards, Joe Yep, thats how I would measure it too. I'd write it down and loose it though. Joe.

	A blind squirrel runs into a tree every once in a while.
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40_Rod Frequent Elocutionist Offline Extremism in the persuit of accuracy is not a vice Posts: 4285 Location: Knoxville, TN Joined: Apr 20^th, 2004	Re: Breach Seating Depth Survey Reply #16 - Feb 26^th, 2011 at 8:10am	Print Post
	With my rifles I use the same procedure when starting. I set my Breech seater .065 ahead of the case then adjust the load. After I have shot it for a while and determined the best load I can find I will tinker with the seating depth dropping it down to .050 and then working my way out in .005 increments until I am happy with the groups. For my 32's that I have the chamber and throating reamers ground for it usually works out to .065 plus or minus .005. I have one 38 that was chambered and throated by Bud Welch that is out to .130 before the groups really closed up. 40 Rod


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frnkeore Frequent Elocutionist Offline Posts: 7265 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: Breach Seating Depth Survey Reply #17 - Feb 26^th, 2011 at 3:07pm	Print Post
	40 Rod, Are you saying that the dimension that you use is in front of the case? If so, can you tell us how much of the base band gets engraved? Frank

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frnkeore Frequent Elocutionist Offline Posts: 7265 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: Breach Seating Depth Survey Reply #18 - Feb 26^th, 2011 at 3:09pm	Print Post
	Joe, I love your new picture. Looks just like you. Frank

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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11455 Location: Why, out West of course Joined: May 29^th, 2006	Re: Breach Seating Depth Survey Reply #19 - Feb 26^th, 2011 at 4:13pm	Print Post
	Thanks Frank. Joe.

	A blind squirrel runs into a tree every once in a while.
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boats Frequent Elocutionist Offline Posts: 7544 Location: Virginia Joined: Apr 23^rd, 2004	Re: Breach Seating Depth Survey Reply #20 - Feb 26^th, 2011 at 4:26pm	Print Post
	No arguement from me on Joe L's loading method. He has the results to prove his theory's. I only shoot offhand so no good way to tell what's real good, you can see what's real bad shooting offhand. It just seems to me you have to start with something and the way the bullets fits is most important governed by both the bullet and individual leade. How far back the case is brings in another set of variables of lesser importance My attention is on bullet fit. Guess it's all the years muzzle loading. Boats


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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11455 Location: Why, out West of course Joined: May 29^th, 2006	Re: Breach Seating Depth Survey Reply #21 - Feb 26^th, 2011 at 4:39pm	Print Post
	I agree Boats. As I get older my interest in BR shooting is on the wane. These days I much prefer to do my shooting OH. In fact, this winter I finally have a rifle and mold that lets me take a rifle ammo and spotting scope to the range. Sorta refreshing to just go do some shooting. I can still use my Hoch to shoot those 250s and world record small groups. Joe.

	A blind squirrel runs into a tree every once in a while.
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singleshotom Senior Forum Member Offline Posts: 371 Location: tofield AB. Canada Joined: Feb 23^rd, 2008	Re: Breach Seating Depth Survey Reply #22 - Feb 26^th, 2011 at 6:30pm	Print Post
	For starters I put the bullet in backwards push it in tight with a pencil. Then measure the distance from the nose of the bullet to the base of the rim, add the length of the bullet to that measurement. Set your seater at that total length from base of cartridge on your seater to end of plunger and that's it..... just that easy.. SST


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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Breach Seating Depth Survey Reply #23 - Feb 26^th, 2011 at 7:44pm	Print Post
	SST that is the Russ Weber method of setting up a seater with the exception of going back a tad from there and moving forward a tad from there for confirmation purposes of it being at the ideal depth setting. J.Louis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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frnkeore Frequent Elocutionist Offline Posts: 7265 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: Breach Seating Depth Survey Reply #24 - Feb 26^th, 2011 at 8:38pm	Print Post
	J Louis, I've looked the thread over a couple of times. I don't seem to find your method. How do you determine the correct distant for your BSed bullet? I'm sure we all would love to know, I know that I would. Frank
	« Last Edit: Feb 27^th, 2011 at 12:22am by frnkeore »
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JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: Breach Seating Depth Survey Reply #25 - Feb 27^th, 2011 at 12:49pm	Print Post
	Frank the 32-40 & 38-55 300MP test targets were shot using a seating depth of .055 beyond the max. case trim length 2.130+.055 seating depth 2.185 as recommended by Paul Schuttleworth who chambered both barrels. I was just curious how others determined the ideal seating depth for their individual rifles and the reasons for doing so. I had a unique experience during load development with my Bresien 33-47 that required some out of the box thinking in regards to seating depth and Quarter Bores method was very similar to mine of which I found to be very interesting. Keep your eye out for a PM I want to share something with you when I can find the time to sit down and type it all out. J.Louis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
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frnkeore Frequent Elocutionist Offline Posts: 7265 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: Breach Seating Depth Survey Reply #26 - Feb 27^th, 2011 at 1:07pm	Print Post
	Thank you J. Louis, I look forward to your PM. Frank

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Kurt_701 Frequent Elocutionist Offline Posts: 1013 Location: Missouri Joined: May 20^th, 2004	Re: Breach Seating Depth Survey Reply #27 - Feb 27^th, 2011 at 3:47pm	Print Post
	When breech seating, I always start out seating a bullet until about half of the base band is engraved by the rifling. I may vary my seating later. With fixed ammo, I seat the bullet out to jam length and play from there. Kurt

	M-14 3rd Battalion 27th Marines RVN 68'69'
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JackHughs Oldtimer Offline Posts: 657 Location: Riverbank Joined: Sep 27^th, 2008	Re: Breach Seating Depth Survey Reply #28 - Feb 28^th, 2011 at 10:28pm	Print Post
	I guess I'll add my small piece - for what it's worth. I start by engraving 50% of the baseband. If the bullet leads the barrel, I push it in deeper until it stops leading. If the bullet continues to lead, it's time to find another bullet and start over. Once the bullet seating depth is established, the powder charge is adjusted to achieve the smallest extreme spread; which, in my limited experience, always occurs somewhere between 1450 and 1500 fps average for 32 caliber rifles. JackHughs

	The best lack all conviction, while the worst Are full of passionate intensity. W.B. Yeats
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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 11455 Location: Why, out West of course Joined: May 29^th, 2006	Re: Breach Seating Depth Survey Reply #29 - Mar 1^st, 2011 at 3:15pm	Print Post
	You know Jack, your method is just to simple and straight forward. It'll never catch on. Joe.

	A blind squirrel runs into a tree every once in a while.
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