Forums.NitroExpress.com

Home | Ezine | Forums | Links | Contact NitroExpress.com: Internet absolute: regulation parallel or crossing?

View recent messages : 24 hours | 48 hours | 7 days | 14 days | 30 days | 60 days | More Smilies

*** Enjoy NitroExpress.com? Participate and join in. ***

You are not logged in. [Login]

Main Index · Search · Active Topics
New user · Who's Online · FAQ · Calendar

Double Rifles, Single Shots & Combinations >> Double Rifles

DarylS
.700 member

Reged: 10/08/05
Posts: 27732
Loc: Beautiful British Columbia, Ca...

Re: Internet absolute: regulation parallel or crossing?
22/12/12 03:34 AM

With parallel regulation the sights could be counted on at all ranges.

If the bullets shoot into a single group, ie: crossing to impact at a given range, at further ranges, the impacts will be diverging from the line of the sights, shooting further and further apart depending on the range.

In 1850, W. Greener wrote that wrote the bores should be made to converge (cross) at a given range, be it 50 yards or 100yards as the only other alternative was that they diverged and different sighting would have to be made for each barrel when shooting at any range. for all intents and purposes, over normal ranges to shoot together at 50 or 100yards would be perfect for most people as they'd be shooting bore axis apart at 100 or 200yards, THEN divergence would take place further out where few tread.

In 1860, Lt. J. Forsyth wrote that W. Greener's premise that the bores would shoot either crossing or diverging was incorrect.

Forsyth noted that perfect regulation was attained when the impacts of each barrel were perfectly parallel - equal distance apart at all ranges, so that the 'sights' would always give virtually the proper point of impact for each barrel. The centre of the individual barrel groups being only bore axis to bore axis apart, thus no holding off would be necessary no matter the range.

In reality, for the bores to shoot very close at 100 or 200yards would probably suffice today for most people.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

Post Extras

Print Post

Remind Me!

Notify Moderator

Entire topic
Subject	Posted by	Posted on
Internet absolute: regulation parallel or crossing?	NitroX	22/12/12 01:33 AM
Re: Internet absolute: regulation parallel or crossing?	4seventy	22/12/12 09:08 AM
Re: Internet absolute: regulation parallel or crossing?	tinker	22/12/12 02:27 PM
Re: Internet absolute: regulation parallel or crossing?	doubleriflejack	22/12/12 07:00 AM
Re: Internet absolute: regulation parallel or crossing?	NitroX	29/12/12 03:18 PM
Re: Internet absolute: regulation parallel or crossing?	NitroX	29/12/12 03:36 PM
Re: Internet absolute: regulation parallel or crossing?	tinker	29/12/12 05:20 PM
Re: Internet absolute: regulation parallel or crossing?	NitroX	29/12/12 06:24 PM
Re: Internet absolute: regulation parallel or crossing?	NitroX	22/12/12 04:05 PM
Re: Internet absolute: regulation parallel or crossing?	NitroX	22/12/12 04:07 PM
Re: Internet absolute: regulation parallel or crossing?	DUGABOY1	08/01/13 06:25 AM
Re: Internet absolute: regulation parallel or crossing?	Bill_Cooley	23/01/13 08:20 AM
Re: Internet absolute: regulation parallel or crossing?	brosteve	21/02/13 03:05 PM
Re: Internet absolute: regulation parallel or crossing?	DarylS	22/02/13 05:45 AM
Re: Internet absolute: regulation parallel or crossing?	DUGABOY1	29/03/13 12:53 PM
Re: Internet absolute: regulation parallel or crossing?	NitroX	22/12/12 05:05 PM
Re: Internet absolute: regulation parallel or crossing?	CowboyCS	23/12/12 06:59 AM
Re: Internet absolute: regulation parallel or crossing?	kuduae	23/12/12 09:33 AM
Re: Internet absolute: regulation parallel or crossing?	doubleriflejack	28/12/12 07:34 AM
Re: Internet absolute: regulation parallel or crossing?	NitroX	23/12/12 11:57 AM
Re: Internet absolute: regulation parallel or crossing?	Idahoshooter	23/12/12 05:33 AM
Re: Internet absolute: regulation parallel or crossing?	Grenadier	23/12/12 06:02 AM
Re: Internet absolute: regulation parallel or crossing?	DarylS	23/12/12 03:24 AM
Re: Internet absolute: regulation parallel or crossing?	Grenadier	23/12/12 04:42 AM
Re: Internet absolute: regulation parallel or crossing?	DarylS	22/12/12 08:58 AM
Re: Internet absolute: regulation parallel or crossing?	Idahoshooter	22/12/12 07:28 AM
Re: Internet absolute: regulation parallel or crossing?	DarylS	22/12/12 03:34 AM
Re: Internet absolute: regulation parallel or crossing?	DarylS	23/01/13 09:13 AM
Re: Internet absolute: regulation parallel or crossing?	AkMike	22/12/12 06:53 AM

Extra information

2 registered and 683 anonymous users are browsing this forum.

Moderator: CptCurl

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 15718

Jump to

NitroExpress.com

Powered by UBB.threads™ 6.5.5

Home | Ezine | Forums | Links | Contact

Copyright 2003 to 2011 - all rights reserved