Posts Tagged ‘geissele’

Aug
22

Range Report: New Varmint Build

You may have noticed that I put together a new AR-15 varmint build.

New varmint build - RRA lower, WOA upper, Geissele trigger

New varmint build - RRA lower, WOA upper, Geissele trigger

When I asked John Holliger what he recommended for barrel break-in on this new upper, he simply replied, “I am not a big believer in barrel break-in.”
In WOA’s FAQs, it suggests shooting 15-20 rounds through it, cleaning, and consider it good to go. So that’s what I did.

Conditions: 85 degrees, humid, sunny afternoon, 10-15mph wind.

Heavy stainless fluted 1:12" twist fluted barrel

Heavy stainless fluted 1:12" twist fluted barrel

I shot 19 rounds of 55 grain .223 VMAX to simultaneously break in the barrel and zero the scope. Then I took it inside for a quick cleaning with Bore-Tech Eliminator. You can tell right away when you’re cleaning a hand-lapped barrel like this one – the patches glide down the barrel like butter.

Topped with Nikon Monarch X 4-16x50 scope

Topped with Nikon Monarch X 4-16x50 scope

After that was done, I shot 10 rounds of Thunder Ammo’s 55 grain VMAX in a respectable 1.359″ group.

10 shot group of 55 grain VMAX

10 shot group of 55 grain VMAX

Feeling pretty good about the first 10 shots out of a new rifle after the world’s fastest break-in, I tried some of Thunder Ammo’s 50 grain VMAX, which grouped slightly better than the 55 grain.

The 50 grain .223 VMAX grouped a little better than the 55 grain

The 50 grain .223 VMAX grouped a little better than the 55 grain

I just so happened to have a box of Black Hills remanufactured 40 grain VMAX on hand, which I figured should be well suited for the 1:12 twist rate of the White Oak barrel. Ten more shots gave us the best group of the day – .900″.

Remanufactured 40 grain VMAX Black Hills Ammo grouped at .9 inches

Remanufactured 40 grain VMAX Black Hills Ammo grouped at .9 inches

Did a quick re-zero to the faster 40 grain bullet, and shot a .616″ 5-shot group.

5 shots of 40 grain Black Hills VMAX in .616 inches

5 shots of 40 grain Black Hills VMAX in .616 inches

A short video:

All-in-all, I’m very pleased with this new build. It’s extremely accurate, the trigger is incredible, and the Monarch X scope is nothing short of superb. (Separate reviews for the trigger and scope will come later).

Once we get a few more rounds down the pipe, a less windy day, and a better rest (which will be here in a few days!), I’m sure those groups will tighten up even more.

Happy shooting.

Aug
17

Varmint Build Is Finished

The upper from White Oak Armament came in today, along with a Geissele match trigger, so tonight I was able to complete the varmint AR-15 I’ve been wanting to build.

It all started with a good deal on a Rock River Arms lower, complete with a RRA parts kit, Ergo grip, and VLTOR buffer and tube. The VLTOR EMod buttstock I had on hand… I may swap this out later on for a Magpul PRS, but we’ll see how this works out first.

New custom varmint .223 build

New custom varmint .223 build

The Geissele 2-stage trigger came highly recommended, and after installing and adjusting it, I can certainly see why. The first stage is set to a smooth 2 pounds with a crisp 6oz second-stage pull. It took about an hour to install and fine-tune the trigger, but that was with a lot of first-time fumbling – now that I know what I’m doing, I’m sure I could do it again in about 15 minutes.

Geissele 2-stage match rifle trigger

Geissele 2-stage match rifle trigger

I went with a WOA upper for a number of reasons, but mainly due to their reputation for outstanding accuracy. I plan on shooting primarily 55 grain Hornady V-Max loads out of this rifle, and WOA’s John Holliger recommended a 1:12 twist. The stainless bull barrel is heavy, and this will not just be a bench gun, so we kept it on the short side at 18″ and added straight fluting that takes off about a pound of weight.

Service from WOA was excellent, and the turnaround on this order was right at 4 weeks.

18 inch stainless fluted barrel on the WOA upper

18 inch stainless fluted barrel on the WOA upper

Speaking of heavy, it’s topped off with a nice, heavy scope: a Nikon Monarch X 4-16×50. This is an amazing scope for the money (street price of around $900). I’ll do a full review of the scope later, but for now, suffice to say I compared this side-by-side with a Zeiss Conquest 4.5-14×44 and Leupold Mark 4 4.5-14×50, and I didn’t buy the Nikon because of the price.

I’m really looking forward to breaking this in next weekend… it should be a real tack-driver.