20MOA Rail Vs. 30MOA Rail?

[az_usmc]

Per Scott Powers of Sniper Country PX a year ago, we designed the best rail and mounts for my Nightforce on my Rem 700 and I decided to take his advice on the Badger Ordnance 20MOA rail. But I was looking at Midway USA Promotions and they have a 30MOA rail on clearance for a Rem 700 $50 less than the 20. Whats the differance?

 

[greentimber]

Re: 20MOA Rail Vs. 30MOA Rail?

If your scope has at least 60 MOA of elevation adjustment buy the 30.

 

[RobertB]

Re: 20MOA Rail Vs. 30MOA Rail?

Don't know if your talking about quality or the difference in 20 or 30 MOA. 30 Moa base will give you more adjustment for farther shots. 10 MOA to be exact. MOA is Minute of Angle. there are 360 degrees within a circle, then there are 60 minutes in a degree, and then 60 seconds within the minute. If your shooting at very long distance then 30 MOA would be better than 20 but if your not than 30 MOA might not let you zero at say 100yds. Unless your going to shoot long ranges that 30 MOA might be to much. What are you shooting and how far are you wanting to shoot?

 

[Chiller]

Re: 20MOA Rail Vs. 30MOA Rail?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: az_usmc</div><div class="ubbcode-body">Per Scott Powers of Sniper Country PX a year ago, we designed the best rail and mounts for my Nightforce on my Rem 700 and I decided to take his advice on the Badger Ordnance 20MOA rail. But I was looking at Midway USA Promotions and they have a 30MOA rail on clearance for a Rem 700 $50 less than the 20. Whats the differance? </div></div>

it is 10 more........

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[jasonk]

Re: 20MOA Rail Vs. 30MOA Rail?

Chiller for the WIN

 

[az_usmc]

Re: 20MOA Rail Vs. 30MOA Rail?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RobertB</div><div class="ubbcode-body">If your shooting at very long distance then 30 MOA would be better than 20 but if your not than 30 MOA might not let you zero at say 100yds. Unless your going to shoot long ranges that 30 MOA might be to much. What are you shooting and how far are you wanting to shoot? </div></div>

Im shooting a Rem 700.300 win mag. I have a 60MOA Scope (Nightforce NXS 5.5x22) I was just target shooting 100-500 yards but at the moment Im building a new rifle for max range, 1000 yds if I can get it. I want to get into F Class comps. I have a new Sentinel stock comming and am having GAP tweek and peak the rifle for me, just getting spare parts together before the stock at McMillan gets finished then am sending everything to George to get finished, assembled and painted. Im just figuring out the technical parts and picking up the new pieces. So maybe 30MOA would be to much for 100-300 yard ranges?

 

[Chiller]

Re: 20MOA Rail Vs. 30MOA Rail?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: az_usmc</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RobertB</div><div class="ubbcode-body">If your shooting at very long distance then 30 MOA would be better than 20 but if your not than 30 MOA might not let you zero at say 100yds. Unless your going to shoot long ranges that 30 MOA might be to much. What are you shooting and how far are you wanting to shoot? </div></div>

Im shooting a Rem 700.300 win mag. I have a 60MOA Scope (Nightforce NXS 5.5x22) I was just target shooting 100-500 yards but at the moment Im building a new rifle for max range, 1000 yds if I can get it. I want to get into F Class comps. I have a new Sentinel stock comming and am having GAP tweek and peak the rifle for me, just getting spare parts together before the stock at McMillan gets finished then am sending everything to George to get finished, assembled and painted. Im just figuring out the technical parts and picking up the new pieces. So maybe 30MOA would be to much for 100-300 yard ranges? </div></div>

.......uh........no

 

[az_usmc]

Re: 20MOA Rail Vs. 30MOA Rail?

so if I zero down to min range to blow chunks off a AZ Buzzards or Jackrabbits with a ballistic round (PETA, hope your not watching), I need to get below 75 yards, so in that senerio, a 30MOA rail would be to much to dial in. I should just stick with 20MOA Rail. Got it. Thanks

 

[Chiller]

Re: 20MOA Rail Vs. 30MOA Rail?

have you run your round through JBM?

 

[RobertB]

Re: 20MOA Rail Vs. 30MOA Rail?

The 5.5x22 has 100 MOA not 60. I have 60 left on mine with a 20 MOA base. If you going to 1000 with your 300 wm then 20 is plenty. IF your shooting 1 mile and such then 30 would be worth looking into. Good luck.

 

[az_usmc]

Re: 20MOA Rail Vs. 30MOA Rail?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RobertB</div><div class="ubbcode-body">The 5.5x22 has 100 MOA not 60. </div></div>

Thats what I was saying about Greentimbers comment, Yes I have 60MOA. I have more than that but that wasn't what he asked, haha. I appreciate the info RobertB and everyone else. Thanx!

 

[RobertB]

Re: 20MOA Rail Vs. 30MOA Rail?

Gotcha good luck with it. That is a great gun, round, scope. You'll have more fun than Micheal Jackson at disney land

 

[Jerry m]

Re: 20MOA Rail Vs. 30MOA Rail?

FYI

I have shot my .308 Win out to 1000 (and a little past that) with a flat base with a NF scope. I really don't need any more than that.

A 20 MOA certainly would not hurt any thing, but with a lesser scope you may not be able to zero at 100 yards with a 30 MOA base. YMMV


Good luck

Jerry

 

[MALLARD]

Re: 20MOA Rail Vs. 30MOA Rail?

i dont think you need an moa rail at all, with the 5.5-22 you have at least 70-80moa of useful adjustment range , more then enough.

if you had the 12-42x NF you would want a rail, that scope only has around 30 moa useful adjustment range , then you would want a 20 or 30 moa rail so you can shoot past 1000y. ( most guns will do drop between 20-40 moa with a 100y zero at 1000y, so you would want a moa slope rail so you could shoot that far with a scope with a small adjustment range.)


but , i dont think you need one at at. Moa rails are for scopes with a small adjustment range , or ELR

 

[ckirkc]

Re: 20MOA Rail Vs. 30MOA Rail?

+1 for flat base. NF = Heaps of Travel. You will be able to shoot past a 1000 no problem with a flat base, but if you feel like that just isn't far enough get the 30 moa base and you will still be able to zero because the NF has heaps of travel.

 

[az_usmc]

Re: 20MOA Rail Vs. 30MOA Rail?

Ill check out the flat base and the 20MOA but I still want to zero in under 100yds and so im told, a 30 base is to much for that.

 

[Chiller]

Re: 20MOA Rail Vs. 30MOA Rail?

Why do you want a zero less than 100?

 

[az_usmc]

Re: 20MOA Rail Vs. 30MOA Rail?

im sayin that wrong, I want to be able to drop down to less than 100. I want my zero at 400-500, sorry.

 

[Bear_308]

Re: 20MOA Rail Vs. 30MOA Rail?

A 100yd zero should be your absolute min with a 300 win mag ... you could easily push the zero out to 200 or even 300 yards with as flat as it shoots.

The 20 MOA rail should be plenty ... but seriously consider setting your zero no less than 100. You'll be holding over or dialing unnecessarily for longer distances.

Good luck with your setup.

 

[ckirkc]

Re: 20MOA Rail Vs. 30MOA Rail?

If you zero at 100 with the 30moa base or the flat base, how much down travel you had left really wouldn't matter if you wanted to shoot really small things under 100 yds. At this point you would be dialing UP or better yet holding over over to account for the mechanical offset between the scope and the barrel.

 

[cmrs8541]

Re: 20MOA Rail Vs. 30MOA Rail?

you have enough travel in that scope to do whatever you want.

when zeroing an optically centered scope on a rifle you have to compensate for your optical offest and the drop of a bullet at a given zero range. this amount of tube travel comes out of the "bottom" of the scope. thus reducing the overall amount of come-up available in the optic.

you are shooting a flat shooting 300 and really have nothing to gain by spending more money here. you will have enough travel in all directions with either mount.

 

[Lindy]

Re: 20MOA Rail Vs. 30MOA Rail?

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">At this point you would be dialing UP or better yet holding over over to account for the mechanical offset between the scope and the barrel.</div></div>

OP: take this to heart. He's absolutely right. There is no reason to zero at less than 100 yards or meters. Short of your zero range, the bullet is going to be <span style="font-style: italic">below</span> the line of sight, because that's where the bullet started out, and you'll have to compensate for that at less than the zero range.

 

[Apex Motorsports]

Re: 20MOA Rail Vs. 30MOA Rail?

One thing that people overlook is that there is two reasons to use the MOA bases. The first is to physically be able to correct for bullet drop and not have to hold off. Second is because the closer to the scopes optical center the better the image that is produced. So if you have the erector cranked to very top or very bottom the image gets degraded.

 

[scotharr]

Re: 20MOA Rail Vs. 30MOA Rail?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: USMC_4_life</div><div class="ubbcode-body">One thing that people overlook is that there is two reasons to use the MOA bases. The first is to physically be able to correct for bullet drop and not have to hold off. Second is because the closer to the scopes optical center the better the image that is produced. So if you have the erector cranked to very top or very bottom the image gets degraded. </div></div>

ding ding ding, the winner. Therefore, the question is what ranges will you be shooting at and what base keeps you closest to the mechanical center of the scope while also providing all the adjustment needed to get you out to the furthest ranges? typically 1K is the furthest considered.

20MOA is usually the answer and 30MOA is not better because its 10 more. In fact, a good argument could be made that a zero MOA rail is better than a 30MOA rail. Why? Because it mounts the scope lower for better cheek weld and it keeps the scope at closer to mechanical center over the "typical" ranges actually shot.