Join the #1 community for gun owners of the Northwest
We believe the 2nd Amendment is best defended through grass-roots organization, education, and advocacy centered around individual gun owners. It is our mission to encourage, organize, and support these efforts throughout Oregon, Washington, Idaho, Montana, and Wyoming.
Discuss firearms and all aspects of firearm ownership
Join others in organizing against anti-gun legislation
Find nearby gun shops, ranges, training, and other resources
Discover free outdoor shooting areas
Stay up to date on firearm-related events
Share photos and video with other members
...and much more!
bull barrel
Accurizing is the process of improving the accuracy and precision of a gun (firearm or airgun).For firearms, accuracy is the ability to hit exactly what one is aiming at, and precision is the ability to hit the same place over and over again in a repeatable fashion. Both are the goals of accurizing, which generally concentrates on four different areas:
Usability: Enhancements that give the shooter a firmer and more controlled hold on the firearm, as well as a more consistent trigger pull. Better design ergonomics is often employed, such as adjustable buttstocks and grips with more vertical angles that are natural to the human hand and wrist (e.g. pistol grip). Spirit levels are often mounted to prevent canting, which can vary the points of impact. Weapon mounts such as bipods, monopods, benchrests, shooting sticks or simply sandbags can provide a more stable and relaxed platform for the shooter, and devices such as muzzle brakes or compensators can also be used to help counter the muzzle rise from recoil and re-establish aim faster and more precisely for repeated firing. The use of suitable slings can also help shooters to stabilize their aim when shooting off-hand while standing or squatting.
Tolerances: Parts that better fit together will shift less, or shift more consistently, under recoil. Rifle bedding is one of the most common practices of such accurizing procedure. Adequate screw torque setting between the action and the stock is also important for the overall rigidity of the system. Some companies, such as Savage Arms, have even introduced features like floating bolt head to provide better bolt-breech engagement for more adequate breech seal and headspacing.
Harmonics: The act of firing a gun generates a rapid pressure increase within the barrel bore, causing the barrel to resonate and vibrate in a rope-like fashion. The resultant harmonic oscillations of the barrel affect the terminal phase of the projectile's internal ballistics and in turn the initial status of its external ballistics, and therefore need to be minimized or tuned to limit their effects on accuracy. Generally the harmonic effects are proportional to the square of the barrel length, and so are generally only of concern in long guns such as rifles but not handguns. Some external accessories, called tuners or de-resonators, can also be mounted onto the barrel to alter the harmonic wave pattern so that the node is shifted as near to the muzzle as possible. Airguns have significantly lower barrel pressure, and therefore are far less affected by barrel harmonics than firearms.
Projectile propulsion consistency: In airguns, the inbuilt powerplants themselves provide the propulsive force to the projectile, so tuning the gun alone is usually sufficient for accurizing as long as the projectiles' weights and shapes are uniform. Firearms, however, rely purely on oxidative chemical reaction of the powder within a cartridge to provide propulsive force, and any slight variations in powder load and combustion efficiency will affect the internal ballistics of the gun, even if the projectile weights and shape are the same. This means that in addition to the gun itself, consistent ammunition performance is also extremely critical for accuracy with firearms. While some manufacturers produce match-grade ammunition with smaller tolerances, it is common for shooters of high-precision disciplines to handload and fine-tune their own ammunition. Furthermore, the rapid gas expansion that occurs when the projectile leaves the muzzle also barometrically affects flight behaviour, so muzzle devices such as flash hider and suppressor can also be used to modulate the escaping gas and improve the consistency of shots.The key to an accurate firearm is consistency. Getting everything to happen the same way for every shot is key to producing small groupings, and there are a large number of issues to be addressed in achieving an accurate firearm. The keys to firing an accurate shot are a firm but not overtight grip, the ability to get a good sight picture and a controlled squeeze of the trigger. The ability to manage recoil is also important in heavily recoiling calibers, both to aid in possible additional shots, and to prevent the user from developing a fear of the recoil.
Started off as a DPMS Sweet 16 Stainless Bull Barrel AR chambered in 223/556 with an $985 MSRP
Upgrades:
Magpul ACS Carbine Stock-$89
Magpul Pistol Grip-$20
Timber Creek Skeletonized Trigger Guard-$30
Timber Creek Extended Mag Release-$20
Timber Creek Charging Handle-$50
Tactical Expressions...
Price drop to $400 and trades listed.
I have a Ruger Mark ll 22/45 model with stainless steel 5.5" bull barrel for sale. I have installed a Hi-Viz fiber optic front sight. I have the extra light tubes for the front sight as well. This will come with everything shown in the pics. 2-10 round...
No Longer Available, choosing not to sell. I bought this pistol new in 1995. I’ve probably had it out 12-15 times since it was new. It shoots great. I don’t use it much anymore, and I have a couple other 22’s to shoot if I want to. This Buck Mark has an adjustable rear sight. It comes with...
WTS Ruger 10-22. Metal trigger group 20" Butler Creek bull barrel unknown round count, laminated stock, picitiny scope mount. $210 buyer pays transfer fee Salem to Portland.
SALE PENDING
Tastefully upgraded Savage 22wmr
■■■■■■■■■■■■■■■■■■■■■■■■■■
▪▪▪▪▪▪▪▪●●●●●●●■~SOLD~■●●●●●●●▪▪▪▪▪▪▪▪
■■■■■■■■■■■■■■■■■■■■■■■■■■
Round count is 100 (at the most) and cleaned after each use (only two outings).
Model 93 FV-SR 22WMR
16.5" threaded bull barrel w/ AR15 "bird cage" flash hider...
This gun is a tack driver, but I simply don't shoot it much, owned it since '95. Its in very good shape, includes one mag, adj sights. The trigger is incredible, John Jardine (master gunsmith) cleaned up and tuned the trigger. The Mark II IN MY HUMBLE OPINION is the best of all the Mark...
Two G-Code IWB mag carriers for S&W Shield Mags. I believe they fit both .40 and 9mm mags, 9mm for sure.
$20.00 each.
*Stock has been sold*
Prefer to meet face to face reasonable distance from Tualatin, can ship on your dime.
Started as a dpms sweet 16. Now has the utg pro keymod handguard. Feels like a dream. Troy low pro gas block. Luthar precision modular buttstock. Magpul keymod front sling mount. Bcm gun fighter charge handle. MAGPUL moe rubber outer grip. Cheaper barska 6.5-20x50 optic. Utg bipod. Shoots great...
Brand-new never fired. Comes with case, 2 mags, optic rail, and the pistol. Its got a bull barrel and target sights.
Cash $280
Trade $360
Vancouver area only
Trades
Small ccw pistols
Snubby
Sks
Make offers .
Gold or silver at spot price.
Hello from the wonderful People's Republik of Kalifornia (currently run by Party Chairwoman Dianne Feinstein),
I am having an issue with the fitting of a bull barrel in my STI .45 and was hoping that someone would have some insight as to how to correct the barrel not going into battery.
I've...
Need to free up some cash for a new project. Selling a complete upper with scope and the stock.
Caliber: 5.56x45mm NATO Chamber
Barrel: 22" Bull Barrel, 416 Stainless Steel, 1:9" Twist
Hand Guard: Rifle Length Round Free Float Tube
Sights/Gas Block: Low Profile Gas Block
Stock: A1 Stock
Upper...