TC Encore Accuracy Barrels - Custom Made Barrels that Optimize Accuracy in your Thompson Center Encore.
Single Shot Rifles * Thompson
Center Arms * Ruger 10/22 Accessories
* Savage Rifle Barrels
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©2002-2008 E. Arthur Brown Co., sales@eabco.com, 650 County Road 40 NW,
Garfield, MN 56332
ph. 320-834-3000, FAX 320-834-3002 , Orders Only Toll Free
1-800-950-9088 * New! Customer Reviews
Made-to-Order Encore Accuracy BarrelsGive Your Encore the Best Barrel for Accurate Shooting! |
Also Available: Ready Made
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Above: Customized EABCO Encore and 1/4" 7-08 Group shot at 100 yds by Keith HudspethWhy We Offer "Accuracy" Barrels...There are three reasons why customers come to us for a custom Encore barrel: The first two are either to get a non-standard chambering or a different barrel length and contour than what's offered by the TC factory. We meet these needs easily and in a timely fashion with either a TC Custom Shop Barrel, or simply cut and recrown services on an off-the-shelf factory barrel.But the THIRD REASON is to achieve a better potential for accuracy than mass production factory barrels... And, this is why we make our own EABCO "Accuracy" Barrels. Its not magic... just extra attention to the details that result in superior accuracy... Precision Barrel Blanks - An EABCO barrel blank is precision gun drilled from the best Chromoly and Stainless steel alloys. Bore dimensions are reamed consistent to airgauge within .0002" (2/10,000ths) of proper bore dimension. These are then Two-Pass button rifled in the various twist rates we offer to suit particular accuracy requirements. One at Time Barrel Making - True, center-to-center barrel turning at a rate that minimizes stress while keeping the bore in the middle. True, center-to-center chamber reaming insures centering and linear alignment of the chamber with the bore. Each chamber's headspace is checked and confirmed with gauges. True, center-to-center 11° target crown, applied after finishing, insures that bullets exit the barrel with perfectly even gas pressure. Chambers with Accuracy Potential - Cartridges that work well within the TC Encore's capability to handle pressure, bolt thrust, and extraction. It stands to reason that cartridges which operate on the outer edge of a gun's capability will have less accuracy potential than cartridges that operate closer to the gun's sweet spot. The TC Encore has superb potential for accuracy with the cartridges we chamber. We don't do any heavy magnums.
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17 Cal - 1:10, 1:9
.22 RF Cal - 1:16 .22 CF Cal - 1:7, 1:9, 1:12, 1:14 6mm/.243 - 1:8, 1:10, 1:12 6.5mm/.264 - 1:8 .270 Cal - 1:10 7mm/.284 - 1:9 30 Cal - 1:8, 1:10, 1:12 338 Cal - 1:10 |
Choosing
Your Twist Rate We have standards we recommend for various chamberings so you don't have to figure this out yourself. But if you'd like to know some guidelines and reasons, here they are: 17 Caliber: Use 1:9 for the rimfires and 1:10 for the centerfires. 22 CF (Centerfire): 1:7 is only for the heaviest bullets. 1:12 shoots 40-50gr bullets accurate in 223 and up to 55gr, accurate in 22-250. 1:14 is only for the lightest bullets. 6mm/.243: Use 1:8 for 90-100gr bullets. 1:10 for 75-85gr. Use 1:12 for lightest bullets (ie. 58gr in 6PPC). On 30 calibers, a 1:10 twist is the best all-around. We DO build a few 30's in 1:8 twists for folks who shoot the heaviest bullets. The rule of thumb with twist rates is this: It is better to err on the side of too fast of a twist than too slow. |
What to Consider When Choosing an Accurate CartridgeWith so many choices, folks will often ask what we recommend as the "Best Cartridge". Unfortunately what's best for one situation is not best for another. For example, 6mm PPC has won more Benchrest Shooting Competitions than any other cartridge (I think)... so it should be considered as among the most accurate cartridges in the world. But it's a little light for deer hunting. As a contrast, our 308 Winchester chambering is what the US Rifle team used at the Bisley matches in England... very accurate and powerful enough for deer sized game and larger. BUT, it recoils significantly harder than the 6mm PPC... Making it a more difficult cartridge to shoot well. When recoil gets stiffer, accurate shooting depends more and more heavily on the shooter's marksmanship skill. So, the key to choosing the Best Cartridge for YOU is this: Decide what you're going to use it most for, then choose based on accuracy potential and shootability.Decide What You Are Going to Use it For - If you're primarily wanting to shoot the tightest groups at paper targets, choose 17 Ackley Hornet, 22 Hornet, 222 Remington, 223 Remington, 22 PPC, 219 Donaldson Wasp, 6mm PPC, 6mm Donaldson Wasp, 6mm BR. If you want to use it for Varmint Hunting, any of the above would be fine plus everything else we offer from .17 caliber thru 6mm. For Big Game Hunting, you need a medium to large case capacity with a heavier bullet in calibers from 6mm on up. Be careful here to optimize your choice for what you plan to hunt most often... not for the heaviest game you'll ever hunt. Most good deer cartridges will work just fine for elk hunting when loaded with heavy, bonded core bullets. But, the biggest magnums suitable for elk hunting are usually way too much for deer and a lot harder to shoot well because of recoil. Accuracy Potential - Cartridge Efficiency is something to consider in accuracy choices. If a cartridge is so large that it can't burn all of its powder charge by the time the bullet leaves the barrel, you'll get a lot of muzzle blast for not much increase in velocity and perhaps an accuracy disruption just as the bullet exits the crown of the muzzle. .308 Winchester is more efficient than 30-06 when shooting 150-165 grain bullets. But, 30-06 will give faster velocity potential than .308 when you shoot 180-220 grain bullets. Ackley Improved (AI) cartridges will generally give a boost in both velocity AND accuracy potential due to the bolt thrust reducing body taper. Shootability - Accurate shot placement is more important than velocity, energy, momentum or any other measure of lethality when hunting game. More importantly, it is a measure of your marksmanship that the pure accuracy of your barrel cannot overcome. So, it's important to choose a cartridge you'll feel comfortable enough with that you'll enjoy shooting it... for practice or just plinking for fun. Recoil and muzzle blast are the biggest destroyers of shootability because they cause a shooter to develop bad habits... flinching, jerking the trigger, holding the gun apprehensively, etc. We have muzzle brakes and recoil pads that can help you reduce recoil. As a direct recommendation on cartridges for deer hunting that have moderate recoil and excellent shootability, consider: .243 Winchester, 25-35 Winchester, 257 Roberts, 6.5mm BRM, 6.5X55 Swedish Mauser, 260 Remington, 270 Winchester, 7mm BRM, 7-08 Remington, 30-30 Winchester, 300 BRM, 308 Winchester, and 30-40 Krag. Killing Power for Sport Hunting - There's an excellent article in the P.O. Ackley Handbook Vol I that addresses this from all of the popular viewpoints (energy, momentum, velocity, knock-out, etc.) No one formula predicts perfectly for every cartridge but, what becomes most conclusive toward the end of the article is that being able to hit what you're aiming at is the first priority, followed by the quality of the bullet with respect to penetration and expansion. |
Encore Rimfire Conversion KitShoot 17 HMR, 22 Mag, and 22 LR Match in Your Encore!Our new rimfire conversion kit simply replaces the centerfire firing pin assembly with a rimfire firing pin assembly. No frame disassembly required. Just remove the one screw above the firing pin. Pull out the centerfire assembly and put in the rimfire assembly. Re-install the screw and you’re done. Well engineered, in-line pin function is reliable and strong. And when you want to change back to centerfire, just reverse the installation process. Switch back and forth whenever you want! This system works with our EABCO Custom Encore barrels in 22 Long Rifle Match, 22 Winchester Magnum Rimfire, and .17 Hornady Magnum Rimfire. Order Your’s Today!ORDER 129-ERF Encore Rimfire Conversion Kit $59 |