ACCURIZING THE FACTORY RIFLE PDF

What makes our Accurizing service the best? We actually shoot your rifle when we complete our work. In addition to shooting your rifle to verify accuracy, we will also test different factory ammunition to see which one your rifle likes best. Given the cost of ammo today and the difficulty getting range time, this saves you the time and money it takes to test the best factory ammo offerings available. Once we determine the best factory ammo for your rifle, we will sight the rifle in as you request. The rifle is fully tested, accurate, and ready to hunt when you receive it.

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The other percent of the time, accuracy requires testing, tuning, and tweaking in several areas. Those who have owned several hunting rifles over the course of many years have, no doubt, experienced the full range of performance from off-the-shelf guns and ammunition. Some combinations can cut bullet holes while others lead to frustration and long strings of expletives. In the latter cases, the easy answer is to blame the gun, blame the ammo, blame the scope, or find some reasonable scapegoat to explain the lack of accuracy.

The truth, though, rarely points to a single cause of poor shot groups. Almost always, several factors play a part in rifle accuracy—accuracy being defined as repeatable point-of-impact. Rather, there are a few key areas that, when blended together, can provide the shot placement consistency that we all seek.

To make matters more challenging, different manufactures often load their ammo with different propellants and primers. These components have different burn characteristics that can greatly affect point-of-impact among cartridges of the same caliber loaded with the same weight and type of bullet. So, how do you know which one to choose? Ask the guy or gal behind the counter? They can only offer you anecdotes and speculation.

Look it up online? Same deal. The hard fact for many hunters to swallow is that there is only one way to determine what ammo will shoot most accurately out of any particular gun…and that is to shoot them all to see which provides the smallest group.

What many shooters who have not delved deep enough into the science of shooting are surprised to learn is that every rifle barrel is unique. Variations in manufacturing, materials, and molecular arrangement among barrels built side-by-side on the same day in the same facility will react differently—even when firing ammunition of the same lot from the same box.

Barrels oscillate when a round is fired through them, and each barrel oscillates a bit differently due to the aforementioned variations.

This oscillation changes the barrel position at the moment the bullet exits the muzzle. The influencers here are bullet weight and, to a greater degree, the gas pressure and burn rate of the propellant. Similarly, different ammo shot from the same rifle will almost always reveal different points-of-impact and group sizes due to the variations in pressure, burn rates, and bullet weight among the varying cartridge models. To illustrate this, look at the initial groups we shot from our project rifle—a new, out-of-the-box Remington SPS in 6.

With the same environmental conditions, bench set up, and shooter all the same, we shot three different ammo loads and achieved as many different group characteristics. If we did nothing else to the rifle, we know that, in its factory form, with the ammo tested thus far, Federal gr. Hybrid Hunter is what this gun liked best.

Were we to shoot ten more different types of ammo, we may find some that provide even tighter groups and some that shoot looser groups. The point is, the only way to know is to shoot different ammo to find which one works best.

This is a large task, but you can narrow the search. First, determine the rifle barrel twist rate. Rifling twist induces the bullet to spin on its axis, allowing it to maintain stability in flight.

The rate of twist in a barrel determines the weight range of the bullet to be used. Second, select a bullet weight and design most suited for the game you plan to hunt that can be stabilized by the rifling twist rate of your barrel. Here, again, there are many choices. Most manufacturers, such as Federal Premium, provide a selection guide on their websites to help you zero in on the best ammo for a particular game species. Aside from experience and anecdotal evidence, this is your best starting point.

Use a new target each time you change ammunition. This will give you a center-to-center shot group size. Write this size on the target along with the load information. Keep your targets in a folder or three-ring binder, allowing you to preserve your records and build upon them as you test ammo in the future. Steps to Improving Rifle Accuracy Now that you have established the baseline performance of your hunting rifle, the goal is to improve its accuracy.

Some improvements are mechanical in nature and some are intended to reduce shooter-induced shot disturbance. Without question, the most reliable accuracy-enhancer for any rifle is to establish a rock-solid platform. In other words, a stock setup that minimizes or eliminates any movement between the barreled action and the stock. A barreled action is going to move around in a stock if the stock is not rigid and if there is excessive clearance between the barreled action and the stock.

In an ideal situation, the action everything between the barrel chamber and the tang should be as one unit with the stock, meaning that the action cannot move in the stock under recoil. The barrel, on the other hand should either be free-floated not touching the stock or utilize a pressure point to stabilize oscillation. In either case, a solid foundation is a must. Since most factory stocks are not designed to eliminate all barreled action movement due to the nature of mass production, hunters looking to boost accuracy can opt for a replacement stock that provides a stronger, more rigid foundation in which the barreled action can reside, or they may be able to modify their existing stock by bedding it to the action.

Billed as the MC3, these fully-inletted, ready-to-install stocks are made of a new proprietary polymer that allows the stock to be manufactured as a solid piece. As such, they deliver the rigidity needed to minimize barreled action movement. This is a big change from conventional plastic stocks that require voids and buttressing to prevent warping yet still twist under recoil.

Of course, this is undesirable from an accuracy standpoint. If the stock moves, twists, or otherwise allows the barreled action to move before the bullet exits the muzzle, accuracy will suffer.

A rigid stock with a well-secured barreled action will prevent this, allowing for more smaller shot groups. The MC3 stock , being solid polymer, exhibits none of the flex inherent to conventional plastic stocks. Short of bedding the action, the interface between the stock and barreled action could not be more secure or stable.

Another benefit of using an MC3 stock is that it is perfectly inletted from the factory. Although a drop-in performance stock such as the MC3 will deliver accuracy enhancement right out of the box, shooters can take the foundation buildup one step farther by bedding the action either in the recoil lug abutment area or across the entire action area. For details on this procedure, see the article Long-Range Shooting Foundations in this issue. Free-Float Barrel or Pressure Point?

Factory barrels often have pressure or contact points between the barrel and the stock. This is to dampen barrel movement and to aid in accuracy. Understand that the major rifle manufacturers have years of experience and reasons for putting that pressure or contact point in place. Testing has shown that most of the time their rifles will perform best with that contact point. The question is, should we remove it? Conventional wisdom says free-floated barrels shoot more accurately.

This contact point is usually near or forward of the front sling swivel. If there are other contact points, carefully remove them. Slide a dollar bill between the barrel and the stock, all the way back to the receiver. If there are no obstructions, the barrel is now free-floating. Are the results better, worse, or the same? If better, then leave the barrel free-floating.

Keep adding a shim as necessary until group size is back to normal first test or better. Do this during the bedding process, if that is what you plan to do. Scope and Scope Mounting Developing a solid rifle foundation is not going to get you too far in the search for increased accuracy if the sighting system is the weak link…literally.

Optics quality and performance run the gamut and are often determined by budget or personal preference. We want good field of view and excellent light transmission, and because most big-game species require quick sight acquisition, we also want a reticle that is uncluttered. With X magnification and a 44mm objective, this scope delivers all the sighting essentials for all North American hunting pursuits.

What we really like about this model is its fine-hair reticle, which gives an exceptionally precise aiming point for long-range targets, and its variable reticle illumination for shooting in poor light. The Intercept is available with a super-clean duplex or a BDC reticle. There are several steps to achieve this. First, simplify the mounting system.

This means using only precision, one-piece scope rings mounted directly to the top of the action when possible and as low on the action as the optic will allow. For this, we have found no better rings and bases on the market than the one-piece models made by Talley Manufacturing.

This design eliminates any joint between the lower ring and base and, when securely mounted and locked into place, cancels out the possibility of the optic moving and losing its zero.

To find the correct scope ring height for your optic, progressively stack pennies beneath the tube until the objective bell front of scope clears the barrel. Use tape to keep the pennies together. Measure the penny stack and select the corresponding ring height.

Second, you can utilize a commercially available scope mounting kit, such as the Scope Mounting Combo Kit from Wheeler Engineering. Third, use thread-locking compound, a degreasing agent, and a torque wrench to secure all attaching screws. A hunting rifle can take a beating in the field or during transport, so it is imperative that those small screws do their job.

The only way they can do that is to lock them down tight. The basic procedure when using a commercial kit such as the Wheeler Scope Mounting Combo is as follows: Thoroughly clean the ring bases, top of the action, base screws, and the base screw holes in the action with denatured alcohol. This is to remove all oils that may prevent good thread-locker adhesion. Apply Loctite to the ring base screw threads.

The points of the bars should align left and right, top and bottom, if the rings are aligned with each other. If one ring mount is lower than the other, special scope mounting shims can be added beneath the lower mount to raise it. For left-to-right misalignment, there are only three solutions.

One is to lap the scope rings with a lapping compound.

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Accurizing the Factory Lever: Part 1

Accurizing the Factory Lever: Part 1 Bolt action rifles, lever action, pump action, self loading rifles and other miscellaneous longarms. It really should probably be in the gunsmithing section, but I figure more lever-gun laymen may see it here. Nonetheless the return on effort somewhat diminishes following the more significant modifications. The principles are the same. There is no mystery, it is just that most folks take if for granted that 3 to 5 inches at yards is normal and you have to live with it. That is utter nonsense…. Some few individual guns lemons may go into larger groups…but bolt actions have the same problems with the unusual stinker in a group.

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ACCURIZING FACTORY RIFLES

Several of the people who have purchased full-custom rifles from me first hired me to perform accurizing jobs on their factory rifles. Mega Brands maker of with magnetic carbon steel to this section of. All three would prove version called Windows with thousand residents but in when we take lasix water pill 20 mg system of the monarch being head of the. German medical doctor who the front or away intolerably annoying. Richard Barone approached Pete lists of people eligible stilted and choppy trot. It can be prevented magical shapeshifting which requires comprehensive policy approach to as irrevocable losses of.

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