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Bryant reticule

 
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  #8  
Old 07-05-2005, 05:14 PM
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Join Date: Jan 2005
Location: Suffolk,.UK
Posts: 154
Re: Bryant reticule

Im in Suffolk UK!
How about you?
Mine has got 40 clks available.
Have you got a stop in the turret that only allows one full turn?
I have already done some research on this and found out that it is possible to get a turret without the single turn stop in it. This would allow you to take full advantage of the 30mm tube.
You would not have an indication of how many full turns you put on though.

If you already have a multi turn turret and have hit the stop you then need the canted base to set the reticule off centre at your zero point
I have actually got a 20moa base on order this seems to be standard on here.

The man to speak to about S&B is our resident expert Pete Lincoln www.roedaleprecision.com

Jeza
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  #9  
Old 07-05-2005, 10:38 PM
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Join Date: Feb 2003
Location: Pueblo, CO
Posts: 1,172
Re: Bryant reticule

Looks interesting for ranging-- could use the x-hair-lower post @ 9", and punch it into the "modified mil-relation formula" for more ranging flexibility for many different tgt. sizes--

say, a cow elk (20" back-brisket) tgt. size in inches x 100 yds./9"/elk brackets 1.0 ranging unit== 220 yds.
20" tgt. brackets .9 RU== 250
.8 = 275
.7 = 320
etc.

6" could be handy too, as well as the ranging lines themselves-- substituted into the above equation using the 200 yd. subtension as a main ranger with the others as a % of that subtension.
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  #10  
Old 07-07-2005, 01:32 PM
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Join Date: May 2005
Location: UK
Posts: 53
Re: Bryant reticule

Jeza

I'm in Sth Wales will be up your neck of the woods in about a month.

Not sure about the turret stop but yes if I need more clicks I have to undo the cap and turn the knob back..... is that the same thing your talking about?

Who you getting your base from?

I am ok with center its elevation I am having difficulty with.

H
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  #11  
Old 07-07-2005, 01:34 PM
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Join Date: May 2005
Location: UK
Posts: 53
Re: Bryant reticule

SScoyote

You have lost me already, could you take it a little slower for me? Not that sharp with all this math yet [img]/ubbthreads/images/graemlins/smirk.gif[/img] [img]/ubbthreads/images/graemlins/crazy.gif[/img]
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  #12  
Old 07-07-2005, 10:49 PM
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Join Date: Feb 2003
Location: Pueblo, CO
Posts: 1,172
Re: Bryant reticule

Harrakhan, i've been studying this reticle ranging stuff for several years now, and the best system i've ever seen is sort of a combination of the TDS system, and the mil-ranging formula. TDS used his "ballistic reticle" as a ranging tool by using 1 of the stadia lines as the "main ranging unit", and then the others were calculated as simply a percentage of that main ranging subtension in inches, or cm., whatever measuring system u choose. To better ubnderstand it u have to begin thinking of the mil-ranging formula as really a "stadia-ranging formula" since the formula simply describes the relationship between stadia subtensions vs. target size vs. range. Here's a link to an article i have on the web, titled, "Tactical Ballistic and Ranging Reticle Analysis" that describes all my research to date. There r a few mistakes in the article that should be updated soon, but the concepts r sound. Refer to Item C) 1 + 2 Reticle Rangefinding-- www.ottllc.com/specialtypistols/sp20.pdf

Here's a copied portion of a Sniper's Hide discussion referring to the Nightforce NP1-RR reticle (the 1 with all the circles in it)--

As far as the reticle ranging goes it's set up for 9", and 18" targets @ the highest magnification. Looking at the website it shows the 1st circle is 9" in diameter @ 300 yds. That means the 100 yd. subtension should by 3", with the baseline to step measurement @ 2X that or 6". Now here's the fun part about reticle ranging-- the best system that' i've come up with is the "mil-ranging formula" that is really not milliradian specific-- it can be used for any stadia-stadia subtension out there (plex, ballistic reticle, custom reticles, AND NP 1-RR CIRCLES/STEPS). The 1000/36 factor in the mil-ranging formula is simply the dot-dot subtension in inches since the factor can be simplified to 100/3.6 (look familiar-- like maybe 3.6"/100yds?). Now simply calculate the other circle subtensions, and then punch them all into the mil-ranging formula to use the ranging system for any size target u want-- like this--

9" 400 yd. circle = 9/4 = 2.25" @ 100 yds.
500 = 9/5 = 1.8"
600 = 1.5
700 = 1.29
800 = 1.125

Now, just punch all these figures into the "modified mil-ranging formula" like this for say a 7.3" (Leupold Varmint Hunter reticle's std.-- if i remember right)pr. dog--

Circle 1) 7.3" x 100 yds./3" (300 yd. circle)/bracketing gap target fills in tenths of that total gap--1.0 =
7.3" x 100/3"/1.0= 245 yds. for the 3" bracketing gap "300 yd." circle.

Circle 2) = 7.3 x 100/2.25/1.0 = 325 yds.
Circle 3) = 7.3 x 100/1.8/1 = 400
4) = 730/1.5 = 490
5) = 730/1.29 = 570
6) = 730/1.125 = 650

This system is very flexible, and allows the use of just about any reticle subtension for any tgt. size-- INCLUDING THE BURRIS BALLISTIC MIL-DOT--either dots, or line stadia. Fact is, u could actually measure the reticle subtension @ any range and punch it into the equation.

Hope this helps some. Let me know if it doesn't-- this stuff can be quite confusing-- took me more than a year to figure it out.
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  #13  
Old 07-10-2005, 09:15 PM
700 700 is offline
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Join Date: Jun 2002
Location: Ireland
Posts: 138
Re: Bryant reticule

Judging by the chart posted earlier, it seems to be a inchces\yards rectule as apposed to a MilliRadian/Metres rectule.

I would prefer not to comment on this rectule as I prefer to support tactical/practicle rectules rather than commercial interests.

Rgds

700
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  #14  
Old 07-11-2005, 03:17 PM
Bronze Member
 
Join Date: May 2005
Location: UK
Posts: 53
Re: Bryant reticule

Well thanks for that 700, I'm not a commercial interest, just a regular guy tryin to improve and get a little support from my peers and betters.

Apart from telling us your personal preferences, your comment adds nothing to the question so why post?

H
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