JR Precision LLC

Easy Precision Maintenance Tips

These are quick habits you can build into your routine. Got a specific rifle or issue you’re dealing with? Send me a message — I’m happy to talk through what might work best for your setup.

You don’t need a huge collection of gear to keep your rifle in top shape. Here’s my recommended short list of tools that actually matter for precision maintenance. Opinions vary, but these are the essentials I reach for most when tuning or maintaining rifles. Start with the basics and you’ll already be ahead of most shooters.

• Bore Guide — The single most important tool for protecting accuracy. It aligns the cleaning rod and prevents wear in the throat and chamber. Get one that fits your action snugly (Dewey, Tipton, or Bore Tech are solid choices).
• One-piece coated or carbon fiber cleaning rod — Avoid cheap multi-piece and stainless steel rods that can flex and scratch. Clean from the chamber end only.
• Caliber-specific jags and patches — Jags hold patches tighter than loops and give better contact. Use cotton flanel patches for solvent and dry patching.
• Bore brushes (bronze and nylon) — Bronze for general carbon removal; nylon for gentler copper scrubbing.
• Old toothbrush or nylon gun brush — Great for getting into the bolt, receiver, and hard-to-reach spots without scratching.
• Quality solvents and light oil — Something like Boretech Eliminator or a dedicated bore cleaner, plus a light gun oil (apply sparingly).

These are the tools I reach for most when tuning or maintaining rifles. Start with the basics above and you’ll already be ahead of most shooters.

To keep your custom rifle performing at its best, regular maintenance is key. Here are some tips to help you care for your firearm:

• Clean Your Rifle Regularly: Clean the barrel and action to prevent fouling and corrosion. Use a quality bore cleaner and follow the manufacturer’s instructions. Powder residue here can cause hard extraction or inconsistent headspace feel. A quick scrub with a chamber brush or Q-tip takes under a minute and makes a big difference in reliability.


• Disassemble and wipe your bolt every few range trips. Remove the firing pin assembly (it usually takes just seconds on most bolts). Wipe out the inside of the bolt body, clean the striker/spring, and apply a very light film of oil before reassembly. This prevents grit buildup that can cause sticky cycling or ignition issues — something many shooters never do until the bolt gets rough.


• Inspect for Wear and Tear: Periodically check your rifle for any signs of wear, loose screws, or damaged parts. Early detection can prevent bigger issues down the line.


• Proper Storage: Store your rifle in a cool, dry place. Use a gun safe or cabinet to protect it from moisture and unauthorized access.


• Use Quality Ammunition: Always use high-quality ammunition that matches the specifications of your rifle. This helps maintain accuracy and reduces wear on the barrel.


• Protect the crown — never set your rifle muzzle-down. The crown is one of the most critical accuracy points on your barrel. Use a bore guide or rest the rifle on its stock or a bipod instead of leaning it muzzle-down against a wall or in a truck. Even light dings here can open up your groups.


• Use a bore guide every single time you clean the barrel. It keeps your cleaning rod centered and prevents rod wear marks inside the chamber or throat — a common hidden cause of accuracy loss that’s easy to avoid.


• Apply lubricant sparingly — think “thin film,” not “wet.” A light coat on the bolt lugs, raceway, and contact points is plenty. Excess oil attracts dust and carbon, which can actually increase friction over time. Less is truly more on precision bolt guns.


• After cleaning the bore, run a dry patch or two and then let the barrel rest “dry” before your next range trip. Many precision shooters notice their first shots after a deep clean can be flyers. Running a couple dry patches and storing the rifle with a clean, dry bore often gives more consistent cold-bore performance.


• Regular Check-ups: Even if you’re diligent with maintenance, it’s a good idea to have your rifle inspected by a professional gunsmith every few years to ensure everything is in top condition.


• Keep a Maintenance Log: Document your cleaning and any issues you encounter. This can help you track patterns and identify when certain parts may need attention or replacement.


• If you use thread locker, use it sparingly: Apply only a small amount to the threads to ensure a secure fit without over-tightening, which can cause damage to the threads or the firearm. Never use Red Loctite on scope base screws or any screws that may need to be removed in the future, as it can be very difficult to remove and may damage the threads. Blue Loctite is a better choice for scope base screws, as it provides a secure hold while still allowing for easier removal when necessary.


• Handle with Care: Always handle your rifle with care, especially when transporting it. Use a padded case and secure it properly to prevent damage.

Following these tips will help ensure your custom rifle continues to perform reliably and accurately for years to come. If you have any questions about maintenance or need a professional full dissassembly, clean and inspection, don’t hesitate to reach out!