November 8th, 2018

Great Accuracy — Criterion Pre-Fit Barrel and Creedmoor Ammo

criterion barrel black creedmoor sports .308 Win Ammunition ammo

Check out that 0.188″ group. Can you believe that was shot with factory .308 Win ammo? A couple seasons ago our friends at Criterion Barrels tested some .308 ammo from Creedmoor Sports. This was loaded with Lapua’s 175gr Scenar HPBT bullet. The results speak for themselves. Any time factory ammo can shoot inside quarter-MOA, that’s impressive. This ammo was used in a “Rem/Age” project rifle. That term refers to a Remington action rifle that has been re-barreled with a pre-fit Criterion barrel. The new barrel is secured with a Savage-style barrel nut. Hence the term “Rem/Age” or “Rem-Age”.

shooting target accurateshooter load developmentCriterion posted: “I think we may have a new favorite factory match load for the nitrided Rem/Age build.” Another reader added: “[Creedmoor’s] 175 Scenar .308 ammunition is top notch.” FYI, this group was shot on our load development target, which you can download for free from our Targets Page.

Why do Criterion barrels shoot so well? One reason is that Criterion’s barrel steel is carefully stress-relieved. In the photo below, Criterion Rack 1A (aka the “Coffin”) has been loaded with barrel blanks — made ready for the stress-relieving process.

criterion barrel black creedmoor sports .308 Win Ammunition ammo

Working with Pre-Fit Barrels
While they may require the purchase of some additional tools and a bit of a learning curve to install, using Rem/Age pre-fit barrels offer advantages over gunsmith chambering and barrel-fitting. In this video, 8541 Tactical explains how to install a Criterion 6.5 Creedmoor “pre-fit” barrel. You save money and time — you don’t have to wait for a gunsmith to chamber the barrel. While Criterion recommends that a competent gunsmith oversee the pre-fit installation, if you understand the use of go/no-go gauges and you have a barrel vise and action wrench set up to remove the original barrel, putting on a pre-fit barrel CAN be a DIY project. You don’t have to pack up your rifle to ship it off to a smith.

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September 3rd, 2015

How to Operate Kestrel 4500 NV Shooters Weather Meter

kestrel weather meter applied ballistics

The Kestrel weather meter is an invaluable tool for shooters. While the standard model Kestrels can record wind and atmospheric conditions, the advanced Kestrel 4500 Shooter’s Weather Meter with Applied Ballistics incorporates a built-in ballistics program developed by Bryan Litz of Applied Ballistics. This is a very powerful tool, but it can be a bit complicated to program at first.

In this detailed 22-minute video, John McQuay of 8541 Tactical shows how to input firearm specs, MV, and BC into a Kestrel 4500 NV (Applied Ballistics model). This handy unit combines a Kestrel Weather meter with a full-fledged ballistics computer.

Step-by-step the video shows how to set up all the important variables. The video shows how to input Muzzle Velocity, Bullet BC (G1 or G7), Zero Distance and the other key ballistics variables. In addition, the video explains how to input gun-specific data such as bore height, barrel twist rate, and barrel rifle twist direction (right-hand vs. left-hand). (Twist direction comes into play in long range spin drift calculations).

If you own a Kestrel 4500 NV (Applied Ballistics), we think you’ll find this video helpful — particularly when it comes to setting up some of the lesser-known data items. The video also offers tips on navigating through the menus most efficiently.


Kestrel 4500 Applied Ballistics (and Horus) Product Features:
kestrel weather meter applied ballistics

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