FinalFinish™ & FinalFinish™ TMS
FinalFinish is an easy, do-it-yourself process that will give the barrel on your firearm a more uniform and polished bore. This will allow you to increase velocity, reduce fouling, make cleaning easier, and, most importantly, the successive application of the five different FinalFinish compounds will improve the quality of the barrel.
FinalFinish is available in 50-bullet kit form or as a box of 20 loaded rounds with FinalFinish bullets specially selected to reproduce 80-percent of the kit results in a convenient, easy to use form. Call to find out which system is best for your needs.
When any barrel is made -- custom or production -- it first has to be drilled. As with any cutting tool, the drill leaves behind its signature: tool marks. Tool marks are blemishes that remain in the metal surface as the result of disruption to the metal. The rifling process then adds more tool marks and imperfections, regardless of the rifling system used (hammer-forged included). These marks normally run in the opposite direction the bullet travels, creating "speed bumps" the bullet must negotiate: a bumpy ride down the barrel which ends in a bumpy flight to the target. Plus, the corrugated and unpolished surface of most barrels creates friction. This friction snags and abrades the bullet jacket, and the rough surface collects firing residue as well as bullet jacket material (fouling).
FinalFinish eradicates most all of these tool marks and leaves a lapped surface in its place.
Since even the most precisely manufactured barrels cannot be made perfect, variations in bore diameter can and do occur. Variations in bore diameters can ultimately mean variations in land (rifling) measurements, and it's the lands that drive the bullet. Bore diameter variations can be significant. FinalFinish greatly improves the uniformity over the full length of the barrel. While it is possible for a skilled gunsmith to hand-lap your factory barrel, it won't be cheap and you must cut and re-crown the muzzle. You can get most of the beneficial effects yourself in one morning at the range using FinalFinish. Using this product on your new rifle will complete the break-in process as well as promote all the accuracy your barrel intrinsically has.
FinalFinish is designed to improve mass-produced factory barrels. It will produce dramatic improvements in these barrels. The improved polish and smoothness will allow you to increase velocity and reduce fouling. This means that more rounds can be fired without accuracy deterioration. (Some of the most impressive results with FinalFinish have come in factory-barreled handguns. Our test firearms showed an average of 60-percent smaller groups! Lead bullet shooters especially will find much easier clean up too.)
FinalFinish is not just for new barrels. As a rifle is fired, the intense heat and pressure created just forward of the chamber eat away at the metal. The number of rounds it takes for this action to affect accuracy varies with the cartridge, but all rifles eventually succumb to throat erosion. The ultimate problem is the roughness and unevenness left behind. A longer throat doesn't have to mean poorer accuracy, but a rough throat most certainly does. FinalFinish can't guarantee miracles, but in almost all cases it will restore a worn barrel's performance by smoothing this eroded area. Barrels also become damaged from cleaning rods, cleaning solvents, and corrosion. FinalFinish will smooth away such surface irregularities.
FinalFinish TMS [throat maintenance system]
This addition to the FinalFinish product line is intended for use by competition shooters and others who demand high performance from quality barrels. TMS greatly extends accurate barrel life. TMS is also the perfect compliment to FinalFinish. On a factory barrel, TMS will help to maintain the smoother internal barrel finish that resulted from its FinalFinish treatment. These bullets are coated with a specially chosen single polishing compound that will smooth and maintain the throat in your firearm, thereby significantly offsetting the effects of throat erosion -- the number-one culprit in barrel wear and accuracy loss.
Barrel wear is really throat erosion. The throat in a rifle barrel is an area several inches long ahead of the chamber. This portion of the barrel receives the full force of the firing process. Extreme temperatures, blazing gases, and radical expansion eat into barrel steel causing stress cracks, pitting, and roughness. Under high magnification the throat starts looking like cracked mud plates in a dried up lake bed! The edges of these plates tend to cup upward and form teeth like a file. These teeth grab and rip the bullet jacket. When the bullet jacket is damaged in this way, bullet integrity is compromised and poor accuracy can result. FinalFinish TMS bullets are specially engineered to smooth over these sharp teeth, helping restore and maintain throat integrity. Two or three TMS rounds every 200-300 shots will greatly extend the accurate life of your barrel, whether it is a match-grade hand-lapped barrel or an out-of-the-box factory rifle. TMS also significantly improves the land's signature mark on the bullet (when seating the bullet into the rifling) and hence eases the bullet's transition into the bore. When this occurs, better accuracy results!
TMS is for use in any barrel, production or custom, at any time during its life.