5.56 Timeline

Optic of the week – GRSC 1-10x Full Spectrum Optic

I just realized as I wrote this title that everything I have ever seen that was named Full Spectrum something or another has been kind of a let down.

Long ago I told Shawn that my holy grail optic would be a 1-10x. But I knew that as soon as I bought one a cheaper, better 1-20x would come out. So if a 1-20x comes out next week, you can thank me for that.

Story I read some years ago said that Fred of GRSC came up with the idea of a horse shoe (or in the past called a flat tire) reticle. That he went to a bunch of different scope companies to sell his reticle to them and they all turned him down. Shortly after, the various scope companies started making their own horse shoe reticles. So Fred went and ordered scopes with his reticle in it to sell.

The 1-10x is the newest optic of his. He specced out his custom reticle to be put in the Atibal 1-10X scope. It comes in the box with a spare battery, flip up covers, a sun shade and a kill flash. At 10 inches long and 21 oz, it is a nice size and not overly heavy.

The oversized power adjustment is awesome. It makes changing the magnification easy. It is my favorite part of this scope.

The turrets are capped. The clicks were easy to tell apart.

The turrets are nice. I’m not sure if I would want to run them uncovered, but they would probably be find if you did. When I zeroed the scope, the windage adjusted just as I expected, I had a great deal more elevation movement than I expected. I’m not sure if I dialed in the wrong adjustment, or if the scope wasn’t performing at expected. If I keep this scope, I’ll do a box test later.

I first used it on a 5.56 upper. When I started trying to zero at 25 yards, I found it rather hard. It seemed like I could either have the target in focus, or the reticle, but not both. Under 4x, I couldn’t make out the reticle, over 7x I the target was too blurry to see. Finally I settled for a blurry target and sighted in quickly. I then slapped it on a 5.45 and fired a couple hundred rounds at 15 yards trying it for speed.

Let us take a look at the reticle:

10X Note the thick horseshoe and the bullet drop reticle set up for M855.
10X illuminated
1X illuminated

The illumination is said to be daylight bright. In shade it showed up well, but once I was out in the Florida sunshine it was not bright enough.

Parallax is suppose to be set at 100 yards. I really struggled with the ocular focus on this scope. I kept fiddling with it as I felt the reticle was a little fuzzy. In the end I think it is the reticle it self that is less than crisp. (Edit – as I was writing this article I played with the ocular focus more. I got it better.) The eye relief seemed fine, but the eye box is small. It was very unforgiving on head placement. If I wasn’t lined up right, the reticle would get fuzzy or have a shadow.

I like the horse shoe reticle, but I feel like this execution could have been done better. The horseshoe is very thick, and obscures part of your target at 10X. At 1X it is very tiny, and I relied more on the large circle than the center horseshoe. The view is pretty good. A little bit of a bubble effect at 1X, but certainly acceptable. (Edit – when I adjusted the ocular focus almost all the way out to get the cross hair crisper, it make the 1X setting appear to be more magnification, the picture was not as flat as before)

I did a bunch of rapid fire with this optic at 15 yards. At first I used the brightest illumination and shooting at a red dot on white paper, the dim red reticle washed out. Turning the illumination off worked better.

I didn’t feel particularly fast when I was using this scope. But I think speed would come with more practice. From 15 yards I shot using 1X, 4X, and 10X. I was shooting a much smaller group with 10x than the other two. I think this might have been due to the reticle being clearer at that magnification. Unfortunatly I didn’t think to bring a timer, so I may have been shooting slower at the higher magnifications and didn’t notice it. I choose to intentionally speed up with the 4X and 10X shooting and that opened up groups.

I wouldn’t call this a proper review. We still don’t know how reliable or durable this scope is. How accurate its bullet drop chart reticle is. Those are very important questions. If I were looking for an optic for a fighting weapon, I spend more would go with a proven product.

If I had to rate this, at the moment I would give it a C-. It is ok, but I wouldn’t call it great. But it is great to see more lower cost 1-X power scopes.

Review: Tasco Riflescope Rings

I am going to be trying out this GRSC 1-10x and I didn’t have any 35mm rings for it. I didn’t feel like buying expensive (read good) rings for a scope I probably won’t keep. I bought some Tasco High Rings for $10.89. Part number TS00725.

I bought those because I needed (read wanted) some other items and I could buy the Tasco rings from the same place selling the other items.

I put the first ring on the rail and tighten it with a torque wrench. I think, “These are pretty nice for ten bucks.” I put the second ring on, and tighten with a torque wrench. It strips out.

I guess I got what I paid for.

I’m going to call this an optic of the week post and rate these a hard fail.

Teaser: GRSC 1-10X

The day before I got this in, I realized I don’t own any 35mm rings.

Expect a review in a couple of weeks, the rings I ordered were sent the extra slow way.

This scope comes in a nice box with a few accessories.

It comes with a sun shade, a honeycomb kill flash, a lens cleaning cloth and an additional CR2032 battery. Sony brand battery, not some unknown brand. The scope also comes with lens caps. Nice little additions.

It comes with a generic manual that appears to be translated from Chinese. Here are a few lines from it:

  • Do not attempt any work until the bun has been cleared and determined to be safe.
  • … and a round is mot in the chamber.
  • Maintain the meatal surface. . .

Over all the generic instructions are not too bad. Shawn and I are going to offer who ever wrote them a position as LooseRounds.com editor as they clearly can write better than us.

The main draw to this scope it its reticle and unfortunately the instruction do not cover that at all. Fred from GRSC recommends you to look at his website for further instruction.

Crimson Trace VF 302 M

Recently I got a package deal on a bunch of stuff. In that package was this Crimson Trace VF302 M vertical grip with IR laser grip.

Crimson Trace is best known for their lasers that they make for pistols. This is a solution they came up with that is a quick detach vertical grip that uses their Beretta 92F/M9 laser grip.

Some of the VF302 vertical forward grips used a thumb screw attachment. This one has an older, no stop, ARMS mount. It can be used by it self, or with any Beretta grip panels on it. The Crimson Trace Laser Grip mounted on it could be taken off and put on any Beretta 92, 96, or M9.

The laser grip in shown here is an IR model. The laser is only visible through night vision. With good 3rd generation night vision the laser dot is visible for several hundred yards at least.

It does what it is suppose to do, but it had a few minor issues. The laser grip is an older model that has already been replaced with a newer design. The Beretta isn’t know for having a small grip. Putting that same grip design as a forward grip on an AR is pretty awkward. With newer, more popular, higher support hand placements your hand will block the emitter.

It is just awkward enough an item that I wouldn’t recommend it.


The optic for this week is not a gun sight but a range finding device. It’s probably something you may or may not have seen before on the internet but its not something younger shooters are familiar with. While it looks large and not at all handy, it was at one time one of the must have items for series precision long range shooters. I first became familiar with them via the ultra long range varmint shooters who demanded precise ranging to hit prairie dogs at extreme ranges. This was in the 80s into the 90s.

Back then there was no laser range finders. Well, other than military models which essentially means none for the rest of us. To get long ranging capability some one got the idea to start using these babies. They don’t use batteries or lasers and they don’t fit in your pocket but man do they work. And they are old world superb quality.

You don’t look through one in and out the other like a scope but through this eye piece on the right. You Just to the far right eye piece you can see what looks like a set of scaled down rifle iron sights. You use those to aim at what you want to range. Then you look through the eye piece at some landmark or structure that is hopefully 90 degrees to the ground. Say it is a phone pole. In the viewer it will look broken. You turn the wheel by the hand holds until the pole lines up and looks unbroken. Then you look into the left side eye piece and it gives you the range in meters. If memory serves the range finder is accurate to within 1 meter when used right and will range out to 10,000 meters. It works very well and we used it for years for accurate ranging.

The artillery range finder comes with a small tripod for obvious reasons like needing to lay prone and be low profile. These small tripods lock onto the optic and can be inserted into a larger set of tripods like seen in the photos.

The optic has a leather strap attached for carrying since it was intended to be man portable. It comes in a tubular water proof sealed carrier that has side pockets and straps for attaching the two tripods and a cleaning set with it. A very nice set up even if it is bulky.

Back in the day these were sold by a company called Deutsche Optik for $399. Be nice if you could get them for that now. A company that has that name still exists with a website but they ran out of the range finders many moons ago and do not sell them anymore.

I don’t know how practical or useful one of these would be to long range shooters anymore. We have GPS, laser range finders and all manner of things to make a long range shot easier. It is definitely a tool adapted by long range shooters from a time that now seems like the dark ages now a days. But it still works and we still use it sometimes.