SLR15 BOLT ACTION SNIPER RIFLE ARMORER COURSE
When: June 5, 2023
Where: Evansville, Indiana
We conducted a 1-day (8-hour) Bolt Action Sniper Rifle Armorer Course that was hosted by the Evansville Police Dept. This is our 4th time teaching Armorer courses here, and we look forward to more in the future. The training room offered plenty of table space, decent lighting of which is always appreciated when working on guns so you can see small parts. The room had a large HDTV system, which allowed us to project some animated graphics of the weapons system, powerpoint detailed pics of gun parts, and especially when looking at finer detail things like machining, stress cracks & wear.
The weapons Officers brought to class were all a mix of Remington 700's and Daniel Defense. People are welcome to bring whatever brands and models of rifles they wish to class, but we only bring parts for the Remington, Savage, and Winchster/FN type rifles with us.
The Student base were all Law Enforcement Officers from Indiana.
The morning started with going through the course manual that all students are given. Students were supplied with their own set of basic tools that are necessary to do the work on their rifles. We also provided lots of gunsmithing/armorer tools, torque wrenches, gauges, borescopes, cleaning equipment, bore guides, vises, etc. All students were supplied with samples of Slip2000 "EWL" Extreme Weapons Lubricant and #725 Cleaner Degreaser, which allowed them to clean and lubricate anything that needed it. A short session of nomenclature was covered, at which time covered every feature and exterior piece of the rifles. We also went through the eight cycles of fire, function checks, and basic inspections.
Students field stripped their rifles. Once field stripped, proper maintenance was shown of where and what to clean, how to clean it, and why some areas need specific cleaning. Everyone was supplied with denatured alcohol, and swabbed out their barrels, which allowed them to borescope the inside. Everyone was allowed to up close inspect their barrels before cleaning them, which gave everyone a view of the rifling, fouling, what different types of fouling look like, areas of fouling, corrosion, erosion, etc. We discussed fouling of different types, and how it effects accuracy in sometimes a good way and sometimes in a bad way. With discussions on fouling, it is our recommendation that Snipers keep a log of their maintenance in addition to shooting log book notes, as over time they will start to see a pattern of how each individual rifle performs with what levels of fouling and maintenance, which may give them an idea of when and how to clean and to what level.
Everyone was allowed to clean their barrels if they wished, and were allowed to use different cleaning products and solvents. We showed different types of bore foam, and warned people to be careful on not leaving it in a barrel too long if it contained ammonia to avoid damage. We showed several types of copper solvents, and showed the proper procedures for using these for fouling removal, and how to keep these from damaging things.
When done with the barrels, we moved into the bolt assemblies. Each type of bolt was covered for cleaning procedures. We then disassembled each type of bolt present. Firing pin assemblies were removed, cleaned, inspected, and we discussed replacement. Several different types of disassembly tools were supplied, and then we also simple field methods of disassembly. It is our belief that Snipers should know how to disassemble bolts in both the workshop and field, as if a rifle were to be dropped or something where it picked up debris like sand, that they can deal with it onsite when necessary. Firing pin assemblies were reassembled and checked for function.
Note: One of the Daniel Defense firing pin assemblies was found to have a large loose burr of metal floating around inside the firing pin channel, which appeared to possibly be from the threading of the bolt body and hadn't been removed before things were assembled at the factory. It was removed, and no damage was found.
We covered extractors, from issues to replacement. Everyone with Remington 700's had rivetless extractors. We also covered replacement of both riveted and rivetless extractors. We went through inspection of bolt lugs and proper lubrication, with our recommended preference to a moly based lubricant on the bolt lugs and why.
Note: Officers in this class had never heard of using the moly lube on the bolt lugs, so everyone took advantage of applying moly to their bolt lugs.
Next we covered the ejection systems. Everyone with the Remington & Savage models were supplied with the proper tools for whichever type of system they had. Everyone removed their ejection systems, gave them a thorough cleaning and inspection to make sure everything was good to go, then all ejection systems were reinstalled and checked for proper function. The first time through the ejection system, everyone was shown how to do it with minimal tools of a bench block, punches and a hammer.
Note: The second time through the ejection system, we supplied people with the Sully Ejector Tool, which works on the Rem 700, Savage type rifles in long action and short action, and AR10/AR308 variants as well. We also supplied them with the Sully Delrin Punches in 30-cal, similar to the 5.56 version that we use in the AR15 / M16 Armorer course. Everyone put these to good use, making ejection replacement much easier when not using an ejector tool.
Everyone was shown how to remove their barreled actions from the stock. We discussed torque of the actions and inspected them before removal, a couple were found to be out-of-spec for torque, with several of them under-torqued, and a couple of them where the torque didn't have any pattern -- we discussed how this may effect accuracy and consistency, along with stress. Everyone removed their actions from the stocks. We cleaned and inspected the stocks, pillars, bedding, lugs, hardware, bottom metal, magazine assemblies, etc. We showed different examples of pillars, bedding, recoil lugs, stocks, etc. Nobody had issues with stress on the pillars or recoil lugs. With the actions removed, we showed how the different trigger groups were mounted, their cleaning & replacement. We also showed the different adjustments of the triggers, and cautioned everyone to leave these within factory spec, and that if they are out of spec to contact the Manufacturer for service procedures. This warning is viewed from the Law Enforcement Sniper point of view of possible civil issues when something is out of factory spec.
Barrels were inspected for crowns, muzzle erosion, and headspace. We showed how to do minor crown repair, and discussed when crown damage needs to be remachined. We also showed several rifles with threaded barrels, and discussed using some type of brake, comp, flash hider, or suppressor mount, and how these do help protect crowns. We covered barrel materials, finishes, treatments like cryogenics, and barrel twist rates and how they pertain to accuracy of different bullets, loads and projectiles.
Lastly we moved into the scopes, mounts, and scope rings. We showed different types of scope bases, how these should be lapped, trued, and properly mounted (To include bedding). We showed how to properly mount scope bases & rings. This included a session on gauging for proper alignment. The misalignment of the scope rings causes stress on the scope, which can effect its performance and repeatability when dialing things around. We then showed how to lap rings, and why. A couple of Officers lapped their rings, and found that lapping was needed. Scopes were then remounted, gauged for proper alignment, and properly torqued. Lastly rifles were inspected to make sure they were in proper working order, and everyone understood that they needed to go to the range and recheck zero and function on the weapons.
Here is a brief course description:
The course covers the Precision Sniper Rifle systems of the Remington 700 series, Savage 10/110 series, and Winchester/FN 70 series type rifles. Other brands of rifles like Accuracy International, Tikka, Sako, Steyr, Ruger, Bergara, Sig Sauer, Daniel Defense, etc, are welcome in class, the only thing we ask is if people know they need replacement parts, then to check with us before hand to make sure we have brought them with us, or to bring them with the rifle to class so the necessary repairs can be made. All students will have the opportunity to inspect their rifles and make any corrections in class to insure their rifle is in top working order. This is a hands-on class that will cover action disassembly & repair, proper torque of the action, extraction and ejection, maintenance, truing/lapping scope rings to maximize the performance of the rifle and optic, inspection of the pillars and bedding, and more.This course covers:
* History of the Weapon System
* Cycles of Function
* Armorer Disassembly & Assembly
* Identification of Common Problems and Parts
* Identification of Group Components
* Stocks, Pillars, Recoil Lugs, and Bedding Inspections (Traditional, Synthetic, and SOPMOD)
* Cleaning and Maintenance
* Barrel Inspection
* Ballistic Issues
* Crown Repair
* Parts Interchangeability & custom fitting
* Firing Pin Protrusion
* Trigger Removal, Cleaning, and Replacement
* Chamber Inspection
* Accessories and Customizing
* Tool Options and Selection
* Scope Base Mounting
* Scope Ring Truing & Lapping
Greg Sullivan "Sully"SLR15 Rifles DefensiveEdge.com