Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Equipment Discussions
Different MOA bases
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Eaglet" data-source="post: 216749" data-attributes="member: 3756"><p><span style="color: black"><span style="font-family: 'Verdana'">The whole thing it's easy to figure out. Let's say we're shooting a 308 with 155 gr. Palma Sierra Bullets at 2950 ft/sec, 5000 ft of Altitude. The Drop at 100 yards would be about 2", </span></span><em><u><span style="color: black"><span style="font-family: 'Verdana'"><span style="font-size: 12px">not the bullet path</span></span></span></u></em><span style="color: black"><span style="font-family: 'Verdana'">, the Drop, meaning if the barrel is completely horizontal, at 100 yards the bullet would drop about 2". If the scope height is 2" from center of the bore to center of the scope then that would make a total of 4 inches. 2" for the scope height and 2" for the bullet drop. That would mean that when the barrel and scope are in the horizontal and the scope turret has been centered exactly at 17.5 moa, then we know the bullet will strike 4" low at 100 yards. You could say that in zeroing in you would be using 4 moa. That would leave 17.5 - 4 = 13.5 moa left to be used. From 35 moa to 13.5 there is a difference of 21.5 MOA that are basically wasted and can no be used. Here is where the tapered bases come in. If you get a 20 moa base it would be putting it you too close to the scope's adjusting limit. A 15 MOA would be nice because it would let you have a total of 13.5 + 15 = 28.5 MOA for long range shooting and it would not be that close to the end of the scope's adjustment since there would still be 6.5 moa left. Hopefully I did not get confused. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> If you need to be more accurate, which I don't think you need, you can always take 4" / 1.047 = 3.82 MOA. I would just call it 4 MOA.</span></span></p><p><span style="color: black"><span style="font-family: 'Verdana'">17.5 middle value is very important and it should be used.</span></span></p></blockquote><p></p>
[QUOTE="Eaglet, post: 216749, member: 3756"] [COLOR=black][FONT=Verdana]The whole thing it’s easy to figure out. Let's say we're shooting a 308 with 155 gr. Palma Sierra Bullets at 2950 ft/sec, 5000 ft of Altitude. The Drop at 100 yards would be about 2", [/FONT][/COLOR][I][U][COLOR=black][FONT=Verdana][SIZE=3]not the bullet path[/SIZE][/FONT][/COLOR][/U][/I][COLOR=black][FONT=Verdana], the Drop, meaning if the barrel is completely horizontal, at 100 yards the bullet would drop about 2". If the scope height is 2" from center of the bore to center of the scope then that would make a total of 4 inches. 2" for the scope height and 2" for the bullet drop. That would mean that when the barrel and scope are in the horizontal and the scope turret has been centered exactly at 17.5 moa, then we know the bullet will strike 4" low at 100 yards. You could say that in zeroing in you would be using 4 moa. That would leave 17.5 - 4 = 13.5 moa left to be used. From 35 moa to 13.5 there is a difference of 21.5 MOA that are basically wasted and can no be used. Here is where the tapered bases come in. If you get a 20 moa base it would be putting it you too close to the scope's adjusting limit. A 15 MOA would be nice because it would let you have a total of 13.5 + 15 = 28.5 MOA for long range shooting and it would not be that close to the end of the scope's adjustment since there would still be 6.5 moa left. Hopefully I did not get confused. :confused: :) ;) If you need to be more accurate, which I don't think you need, you can always take 4" / 1.047 = 3.82 MOA. I would just call it 4 MOA.[/FONT][/COLOR] [COLOR=black][FONT=Verdana]17.5 middle value is very important and it should be used.[/FONT][/COLOR] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Equipment Discussions
Different MOA bases
Top