There are many reasons you might want to make a chamber cast. You may have acquired an older rifle and need to verify the chamber dimensions. Or, if you have a new reamer, you may want to check the exact “cut” dimensions against the blueprint specs. A chamber casting is also valuable if you run across a firearm that you believe has a custom barrel on it and you want to find out the dimensions of the chamber. Lastly, you may want to prepare a chamber casting to be used in the making of custom dies. (Most reloading die makers know how to work from Cerrosafe chamber casts.)
Cerrosafe is a metal alloy that has some unique properties which make it ideal for chamber casting. First, it has a relatively low melting point of 158 to 190° Fahrenheit. This makes it easy for the handloader to melt the Cerrosafe in his home shop. Second, it shrinks slightly during cooling which allows it to be extracted from the chamber easily. It then re-expands to the chamber’s original size after about one hour at room temperature. After cooling for about 200 hours, the chamber cast will expand to about .0025″ larger than the actual chamber size.
One of our Forum members has done many Cerrosafe castings and he offers this smart advice:
1. Remove the barrel from the action to make the pour much easier. If you don’t remove the barrel, it can be hard to pour through the action (even with a funnel) and can make a mess if you’re not careful.
2. Pre-heat the barrel for 5-10 minutes in the oven on the very lowest setting (170° F in my oven). (DON’T overdo it!). Allow to cool for a couple minutes so you can pick it up and it is under 120° F. Pre-heating the barrel helps the Cerrosafe stay liquid as you pour the casting. This helps ensure a good, complete fit to the chamber.
How to Use Cerrosafe for Chamber Casting
The basic ingredient of Cerrosafe is bismuth. Bismuth is a heavy, coarse, crystalline metal which expands when it solidifies, up to 3.3% of its volume. When bismuth is alloyed with other metals, such as lead, tin, cadmium and indium, this expansion is modified according to the relative percentages of bismuth and other components present. As a general rule, bismuth alloys of approximately 50% bismuth exhibit little change of volume during solidification. Alloys containing more than this tend to expand during solidification and those containing less tend to shrink during solidification.
What all this means for the gunsmith is that you can make chamber castings using only Cerrosafe and a few, simple hand tools. To make a chamber casting, first clean and degrease the chamber. Use a tight-fitting, cotton patch that’s wrapped around a bore mop or brush to plug the bore just ahead of the throat. I usually leave the cleaning rod attached to the plug until it’s time to remove the plug. Melt the entire bar of Cerrosafe in a heatproof container that you can easily pour the hot Cerrosafe out of. You can use a propane torch or heat over a hot plate or the burner of a stove. Cerrosafe melts easily at 158°-195° F. While the casting metal is still liquid, stir very well, skim off the dross, and pour your chamber. The real trick with Cerrosafe is not to overheat it. If you heat the solid slowly, and keep it within the required temperature range, you shouldn’t get any dross.
Note the time the casting was poured. The casting will take only a very short time to solidify, usually within a minute. Wait 30 minutes and then remove the plug from the bore. Turn the muzzle upward and the casting will fall from the chamber. At 30 minutes after initial solidification, Cerrosafe shrinks slightly, so removal is very easy. Allow the new casting to cool thoroughly then measure the casting exactly one hour from the time it was cast. The casting will give you an exact measurement of the chamber. Cerrosafe casting metal can be used over and over. Remelt the entire amount back together and pour the Cerrosafe into a small mold of the appropriate size. Always melt the entire Cerrosafe ingot to make a chamber casting. For best results, never cut off, or use, just a part of the ingot.
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Some interesting products were featured in Brownell’s New Product Review this week. Brownells Merchandise Manager Paul Levy looks at a new Rem 700 Magwell system from Magpul, along with Hornady’s impressive new Handbook of Cartridge Reloading, 10th Edition. For a quick look at these and other new products, check out the Video below:
Magpul Magnum Long Action MagWell — This fits Long-Action Rem 700 and Rem clone actions. Priced at just $75.95, this composite “bottom metal” is light-weight polymer, with a handy ambidextrous magazine release on either side of the trigger guard. Designed to work with AICS-pattern long action magazines, this kit also includes one Magpul PMAG® 5ACL magnum magazine for .300 WM-based family of cartridges.
Hornady 10th Edition Reloading Manual — This was just released, so it is one of the most up-to-date load manuals in print. Hornady’s new Manual is very comprehensive. It includes new information for the 6.5 Creedmoor and other modern cartridge type.
Smith Tactics Battle Bar — For Black Rifle fans, this slick extension that makes it easier to operate an AR’s bolt release.
Nowlin Drop-In 1911 Pistol Barrels — Upgrade your 1911 with a new barrel in .40 SW or .45 ACP. If you have an older pistol with many thousands of rounds this can be a “drop-in” accuracy fix.
Note: If you are interested in these or other Brownells products, you can get free ground shipping for orders over $99.00. Use Code LYH at checkout.
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Want to upgrade your AR’s trigger? Shooting USA and Brownells have created a video tutorial that shows how to remove a factory AR trigger and replace it with an upgrade. This video illustrates the procedures to follow and the tools you’ll need. Step-by-step, the video explains how to swap the factory trigger group for a self-contained ‘box style’ drop-in trigger module or a traditional (multi-part) trigger system with enhanced performance.
Many AR-15s come from the factory with a military-type trigger that has a long, gritty, heavy pull. Replacing that trigger is one of the best ways to improve your AR’s performance. You’ll be rewarded with a smoother pull, shorter take-up, and reduced pull weight. You will also have a choice between a single-stage and a dual-stage trigger.
The box-style, self-contained drop-in systems from companies like AR Gold, CMC, Timney, and Wilson Combat are the easiest to install. John Scoutten explains: “These self-contained systems … are very simple to install. In fact, all you do is remove the factory parts, drop in the whole system, replace your pins, and you’re done.” Conventional two-piece trigger groups are offered by DPMS, Geissele, JP Enterprises, and Rock River.
The key points of the video tutorial are also explained on the Shooting USA website with text and still pictures. Before you start your trigger project, review Shooting USA’s AR Trigger Upgrade Page. You’ll find helpful close-up photos on that page.
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Great news for shooters –Bill Gravatt (former owner and President of Sinclair International) has joined the team at Creedmoor Sports. Bill will work with Creedmoor on product development, customer service, and other key tasks, bringing his decades of experience to Creedmoor’s operations. Creedmoor Sports is a company on the rise — it now offers a full line of ammunition, and in recent years Creedmoor has launched its own successful “brick and mortar” retail stores.
Bill has worked in the shooting and reloading industry for over 25 years. His vast knowledge of “all things shooting and reloading” will help Creedmoor expand its product line and serve hand-loaders. Bill Gravatt commented: “The folks at Creedmoor Sports remind me of the great team I had at Sinclair International. They are all driven in pursuit of exemplary customer service, they create well-made products, love to shoot, and just enjoy the daily satisfaction that comes from helping fellow shooters enjoy their sport.”
Greg Kantorovich, owner and President of Creedmoor Sports, tells us: “We are excited to have Bill working with us in many areas including product innovation, content production, reloading expansion, and consulting with our management team.”
“Bill brings a passion for people, product, and process that is second to none. In the short time we have been working together he has helped us raise the bar on becoming a better company to serve our customers. Myself and my team are excited for the future of precision rifle shooting and what Creedmoor will continue to bring to market.”
About Creedmoor Sports, Inc.
Creedmoor Sports produces rugged, well-built equipment for precision-driven rifle shooters. Creedmoor offers products for centerfire, smallbore and air rifle/pistol disciplines, as well as hunting and recreational shooters. For more information, visit CreedmoorSports.com.
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At the request of our readers, we provide select “Deals of the Week”. Today we have something special — a bunch of exceptional “Cyber Monday” Deals as well as carry-over Black Friday Bargains. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories we found. You’ll need to act quickly because many of these deals expire at 11:59 PM tonight (11/28/2016) or on Tuesday. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Brownells — Cyber Monday Guns, Optics, Parts, Ammo & More
Brownells has gone “whole hog” for Cyber Monday this year. Visit Brownells’ Cyber Monday Page and you’ll find deep discounts on firearms, optics, mags, reloading tools, ammo, gun parts and accessories. It’s easy to navigate — as there are big topical buttons for all the key product line. To further motivate Cyber Monday shoppers, Brownells is offering FREE Shipping with Code L9L. And, if you spend $200.00 or more, you can get FREE shipping plus 10% OFF your order with Code L9M. To see all Brownells Cyber Monday deals, CLICK HERE.
2. CDNN Sports — Cyber Monday Rifle Deals
CDNN is running a Cyber Monday Sale with deep discounts on numerous rifles and pistols. You’ll find great deals on Colt, Remington, and Ruger rifles. But what really caught our attention were the BROWNING BARGAINS. Check out the prices on these smooth-cycling A-Bolt III rifles (as low at $449.00 net after Browning Rebate). And what’s even better, CDNN includes a 3-9x40mm Thompson Center Scope and rings with each A-Bolt III. NOTE: Sale ends Tuesday November 29, 2016 at Noon CST. If you want one of these rifles — don’t delay!
Our friends at EuroOptic.com have rolled out some exceptional deals for Cyber Monday. Buy a Sightron Scope and get a $50.00 Gift Card. You’ll also find great deals on Leica CRF-1600B and CRF-1000R Laser Rangefinders. Last but not least, prices have been slashed on Leupold’s highly-respected Mark IV scopes. With EuroOptic’s Close-Out Pricing, save $200-$300 on these Mark IVs.
4. Midsouth — Lock ‘N Load Complete Reloading Kit, $249.99
The Hornady Lock-N-Load Classic Reloading Kit comes with everything you need to turn out high-quality handloads. The Kit includes: Hornady Lock-N-Load Classic single-stage press, Hornady Powder Measure, Digital Scale, Two-Volume Hornady Reloading Manual, Three Lock-N-Load Die Bushings, Reloading Block, Chamfer/Debur Tool, Hand Priming Tool, and One Shot™ Case Lube. We’ve used this press and it is excellent. The L-N-L bushings allow fast die changes.
Creedmoor Sports has many items on sale this Cyber Monday. You’ll find discounts on Creedmoor-brand ammo, shooting mats, shooting gloves, and books. But the deal that really caught our attention was the Shooting Coat Special. Today you can save $30.95 on Creedmoor’s famous Canvas Shooting Coat. Regularly $140.95, this coat is now just $110.00 — that’s a 22% markdown.
Plus on Cyber Monday you can get FREE Ground Shipping on ALL in-stock items in the Creedmoor online store. This special expires at 11:59 pm, November 28, 2016.
6. Cabelas.com — Cyber Week Deals on Guns, Ammo, & Gear
Now through December 3, 2016, Cabela’s is offering CyberWeek Deals on a wide range of products. Here are four of the best shooting/hunting bargains we found:
7. Gander Mountain — Money Off Codes Save Up to $100 on Orders
Gander Mountain carries a large selection of outdoor gear, reloading products, and hunting accessories. This national retailer also sells pistols, shotguns, and rifles. If you find an item of interest at GanderMountain.com, save cash with Coupon Code CYBER2016. This saves $20 on $100+ orders, saves $50 on $250+ orders, and saves a whopping $100 on $500+ orders. NOTE: This promotion expires November 28, 2016 at 11:59 pm EST.
8. Sportsman’s Guide — Cyber Monday Specials
For Cyber Monday, Sportsman’s Guide has slashed prices on 140+ items. Hunters will find a wide selection of footwear and camo hunting apparel on sale. In addition, there are bargains on hunting accessories such as game cameras, gloves, and winter wear. Shown above are some very good deals we found on the Cyber Monday Sale Page.
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At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. MidwayUSA — Black Friday Sale Starts Monday, 11/21/2016
Black Friday starts today — at least at MidwayUSA. Starting Monday, November 21st, you’ll find super bargains at MidwayUSA all week. Prices have been slashed on dozens of popular products. Above are six Black Friday bargains that caught our eye — check out the major price cuts on Leupold VX-6 scopes, and save 15% on Sierra bullets. This is just the tip of the iceberg — dozens of other products are on sale. Loaded ammo is deeply discounted and you can even get an NRA Life Membership for just $600.00. You’ll find these and scores of other super-deals on MidwayUSA’s Black Friday Sale Page. These prices are good through 11/28/2016 at 11:59 pm.
2. Natchez — Hodgdon Varget 8-lb Jugs, $186.49
If you’ve been looking for Hodgdon Varget powder in the large eight-pound (8 lb.) jugs, Natchez has this in stock, as of Monday morning, November 21st. If you want this powder, you better jump on this. Supplies are limited. Sorry, no H4350 in the big jugs, but Natchez does have Varget in one-pound containers for $25.99 per pound.
3. Natchez — Special 5 Reloading Press Kit, $199.99
Looking for a great holiday gift for a family member getting started in metallic cartridge reloading? This RCBS Kit has everything a new reloader needs: single-stage press, powder measure, scale, powder trickler, priming tool, cartridge tray, “rocket” chamfer tool, case lube and more. This is an excellent entry-level reloading kit, on sale for just $199.99 at Natchez Shooters Supplies. We like the relatively compact Special 5 press for most reloading duties. Eventually you may want to add an additional, large heavy press, but this will get the job done. For the combined package, with all the tools one needs to hand-load quality ammo — this is a stunningly good deal at $199.99.
4. CDNN Sports — Ruger American .270 Win, $289.99
If you’re looking for a good deer-hunting rifle at a super-affordable price, check out this .270 Winchester Ruger American. It comes with a gray-blue digital camo finish that actually suits gray fall days pretty well. The long action sits in a integral bedding block, and features a three-lug bolt with 70° bolt lift. The 22″ hammer-forged barrel has a 1:10″-twist, so it’s capable of shooting the most popular .270-caliber hunting bullets. Ammo is held in a flush-fit rotary magazine. The Ruger American is a good, solid rifle — and this is a steal at $289.99. If you don’t like the finish, buy a $5.00 can of spray paint.
5. Brownells — GET $10 Off $75.00+ Orders plus Free Shipping
Brownells is the “go-to” source for firearms parts and accessories, and Brownells also offers a full range of reloading and gunsmithing tools. Now, with PROMO CODE L6G, you can save $10 off any order over $75.00, plus get FREE Shipping. That could easily save you twenty bucks or more on your next order. Note, this deal applies to online orders only, and you can only use one promo code per order. To qualify, insert CODE “L6G” during checkout.
6. J&G Sales — Eley Target .22 LR Ammo, $59.90 for 500 Rounds
Yellow Box Eley Target is excellent .22 LR ammunition that is plenty accurate for all but the most demanding rimfire disciplines. This is way more accurate than bulk ammo which might sell for $4.00-$5.00 per box at stores. With this special deal at J&G Sales you can get a 500-round brick (ten 50-rd boxes) for just $59.90. That’s a steal when you consider this ammo sells elsewhere (MidwayUSA) for $7.99 for a 50-rd box. So you can save two bucks a box with this deal. That’s a 25% savings.
7. Amazon — Frankford Quick-N-EZ Case Tumbler, $34.99
Look no further for a great deal on a reliable tumbler. We’ve used this very same machine to tumble both pistol brass and rifle cases. We like the see-through, transparent top and the large capacity — this will hold up to 350 .223 Rem cases. With 1000+ customer reviews on Amazon.com, this Frankford Quick-N-Easy Case Tumbler has earned a 4.5-star rating. If you need a tumbler, you might want to order soon — this is the best price we’ve seen in a while.
8. Midsouth — 17 HMR V-Max Ammo, $10.45 for 50 rounds
Need 17 HMR ammo for your varmint safaris? Then grab this Hornady V-Max ammo while you can at $10.45 for a 50-round box. This is a great price. Other vendors are selling the same Hornady ammo for as much as $15.00 per box. We’ve used this ammo and it was very accurate out of both semi-auto (Savage A17) and bolt-action (CZ 455) 17 HMR rifles.
9. Amazon — Leight MAX NRR33 Earplugs, $7.58 for 50 Pairs.
These Howard Leight NRR33 Max plugs are your Editor’s favorite foam earplugs. Between shooting, motorcycling and mowing lawns, I probably have Max plugs in my ears 2-3 days a week. This is a very good price for a bulk pack of 50 pairs. And if you act soon, you can get free shipping to boot.
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For decades, shooters have depended on Brownells to provide tools, parts and accessories for nearly all kinds of modern sporting and hunting firearms. Starting this month, gun owners can now purchase rifles, shotguns, and pistols from Brownells, which has opened a web-based, gun sales division. The company’s entry into selling firearms online makes Brownells a true, one-stop-shop for gun owners and shooting sports enthusiasts.
“We’ve been a gun company from the beginning,” said Pete Brownell, CEO of Brownells. “For 77 years, we’ve serviced all corners of the firearms market – new shooters to gunsmiths. This is just one example of many upcoming programs we’ll be launching to serve every portion of the gun industry.”
Brownells’ new Firearms Sales Center features more than 3,500 production firearms from over 30 popular gun manufacturers, including Remington, Ruger, Browning, CZ-USA, Smith & Wesson, Sig Sauer, Beretta, Benelli, Glock and more.
Customers can order guns online using the simple, step-by-step instructions. The quickest, easiest method for completing an online gun purchase will be to choose a Brownells Featured Dealer from the online list of FFL dealers who have already agreed to perform transfers on guns bought from Brownells.
News Tip from EdLongrange. We welcome reader submissions.
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You can never be too safe when hand-loading your own ammunition. This helpful Brownells video outlines the Seven Fundamental Reloading Safety Tips. This is important information for novice hand-loaders and a good refresher for those with reloading experience!
Summary of the Seven Safety Tips:
1. Store your reloading supplies in a safe and dry location, away from children and away from any possible source of ignition. This includes keeping your powder and primers separate.
2. Get and use respected reloading manuals, especially for new cartridges. Start low and work up slowly while watching for warning signs of pressure and/or case fatigue.
3. Locate your reloading activity where you will not be distracted. If you get interrupted, stop. (Distractions will eventually lead to mistakes.)
4. Do NOT mix powders. Keep your powders clearly marked and dated. You can use masking tape to write the date on the container.
5. If you load the same cartridge type for different firearms, make sure your ammo headspaces properly in each gun.
6. Check cases frequently. Look for split necks, case head separation or other signs of fatigue and excessive pressure.
7. If reloading military brass, be aware that case capacity is usually reduced, and initial loads should be at least 10-15% lower than published data.
Here are some other tips that will help your avoid making costly mistakes (such as using the wrong powder, or undercharging a case):
Powder Type — Always double-check the label on your powder containers. After placing powder in the powder measure, put a piece of tape on the measure with the powder type written on it. Some guys write the powder type on a card and place that right in the hopper.
Scale Drift — Electronic balances can drift. If you are using a digital powder scale, calibrate the scale with a test weight every 50 rounds or so.
Case Fill — If you throw more than one charge at a time, look INSIDE every case before seating a bullet. Squib charges can be dangerous if you don’t notice them before firing the next round.
Progressive Presses — When using a progressive press, consider using an RCBS Lock-Out Die. This will detect a low charge and stop the machine. These dies will work with RCBS, Hornady, and Dillon progressives.
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The rear stock and grip (shown above) come from the commercial LUCID AR Stock Kit. But Forum member Brian V. custom-made this one-piece walnut forearm.
Forum member Brian V. (aka “Carbide”) wanted a new look for his “modern sporting rifle”. He was tired of looking at black plastic (or FDE, OD green) and aluminum components on his AR15. So he decided to fit wood “furniture” on the rifle. He ordered a wood butt-stock and fore-arm set made by Lucid, but he didn’t like the two-piece fore-arm of the Lucid stock set. He decided he could build something better than the commercially-available, Lucid-made wood fore-arm.
Lathe-Turned Custom Walnut Sleeve in Front
So Brian took his existing AR tubular fore-arm and epoxied a walnut sleeve to it. With a lathe, Brian then turned the walnut sleeve to his desired dimensions: 2.250″ diameter in back and 2.200″ diameter in front, so there’s a little taper. Brian says “I could have gone a little thinner.” The wood fore-end was then sanded and stained to match the Lucid-made rear section. Brian says “the stain is not quite a perfect match, but but it looks a lot better.”
Does Brian like his new wood-stocked AR? Absolutely. He says the conversion makes the gun more user-friendly: “The wood is warmer to carry in winter and quieter.” He adds that the wood sleeve added about four ounces of weight to the fore-end, but that did not affect the handling.
We think this is a good “do-it-yourself” project that could be done by many of our readers. You can simply install the Lucid stock set or customize the front end like Brian did. Either way, you end up with a good-looking rifle that feels better in your hands.
Brownell’s has prepared a useful video showing how to remove light rust from a firearm. This shows how to use soft cloths, polishes, and 0000 steel wool to eliminate light surface rust. CAUTION — if you have a very high gloss blued finish, ANY abrasive and even the finest grade of oiled steel wool can scratch or alter the finish. With something like a $1200.00 “Royal Blue” Colt Python, it may be better to tolerate a few small pits than to work it over with steel wool.
Watch Brownell’s Video on Rust Removal
Brownell’s technician, Steve Ostrem, notes that many things can promote rust — some you might not expect. In addition to moisture in the air, rust can be caused by the salts and oils from your hands, sweat, blood, or even insect repellent. Ostrem also observes that temperature changes can produce condensation which may lead to rust inside the gun that you don’t even notice: “In the real world we know that if you take the gun outside, sooner or later, it’s going to rust. When you come inside, wipe the gun down the first opportunity you get. If you bring a cold gun into a warm, humid house, you’re going to have an instant coating of moisture… make sure you get the gun dried off and you’ll avoid a lot of problems.”
Rust Prevention
We’ve conducted a comprehensive test of corrosion-fighters. Among the best products to prevent rust are Boeshield T-9, Corrosion-X, and Eezox. Break-Free also works well, but it leaves a somewhat greasy residue, and it did not perform as well during long-term salt exposure as did the other three products.
For long-term storage, nothing beats a coating of Cosmoline, Rig or similar grease. This provides a barrier layer that blocks the oxidation process, which is how rust forms. These greases performed extremely well in a comparison test of Rust Preventative Products performed by Brownell’s. CLICK HERE for Comparison Test.
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The Grand Opening of the new Brownells retail gun store (in Grinnell, IA) will take place on Saturday, June 11, 2016, from 9:00 am to 6:00 pm. At 8:45 am Iowa Governor Terry Branstad, Lt. Governor Kim Reynolds, and Grinnell Mayor Gordon Canfield will deliver comments before company owners Frank and Pete Brownell cut the ceremonial ribbon.
The new store is located at 3006 Brownells Parkway, just off I-80 exit 182, in Grinnell, Iowa. To learn more about Brownells’ new retail store call 641-236-0001 or visit www.Brownells.com/retail.
“We’re very excited for our grand opening celebration,” said Pete Brownell, CEO of Brownells. “There will be lots of great deals, prizes and things to do for the entire family”. There will also be a food truck on-site selling BBQ and other treats.
Retail Store Linked to Brownells Warehouse
The new retail location will showcase 1,200 new and used firearms, plus a large selection of ammunition, optics, parts and accessories. The new 7,000 square-foot retail store is attached to the 245,000 square-foot Brownells Distribution Center. Brownells promises that any of the nearly 100,000 firearms-related items will be delivered from warehouse to store in minutes.
Factory Reps Will Answer Product Questions
An impressive “brain trust” of gun industry experts will be on hand at the Saturday Grand Opening. Answering customer questions will be representatives from many leading manufacturers: Benelli, Beretta, H&K, Hornady, Leupold,Streamlight, Surefire, Trijicon and more.
Prizes, Swag, and Great Deals
To celebrate the Grand Opening, Brownells will offer valuable give-aways. Prizes up for grabs include a $2,500 Daniel Defense AR-platform rifle, a $450 Glock 43 pistol, and a $200 Brownells Gift Card.
Customers will enjoy special sale pricing on firearms from Ruger, Weatherby, Smith & Wesson, Glock, and Bushmaster. Sale-priced ammunition will be offered from Wolf, Federal and Remington, including limited-quantity .22 LR ammo priced at just $74.99 for an ammo box with 1,300 rounds. That works out to just $5.76 per hundred rounds — a great deal by any measure.
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While AccurateShooter.com focuses on rifles, we know that a large percentage of our readers own handguns, with 1911-style pistols being particular favorites. For you 1911 owners, here are six short videos from Brownells showing how to customize a 1911-style pistol with after-market upgrades.
How to Accessorize Your 1911
This six-part series by Brownells provides step-by-step instruction on how to accessorize your 1911. The videos cover changing out the mainspring housing, magazine release, slide release, hammer, guide rod, and installing a group gripper.
Cerrosafe is a metal alloy that has some unique properties which make it ideal for chamber casting. First, it has a relatively low melting point of 158 to 190° Fahrenheit. This makes it easy for the handloader to melt the Cerrosafe in his home shop. Second, it shrinks slightly during cooling which allows it to be extracted from the chamber easily. It then re-expands to the chamber’s original size after about one hour at room temperature. After cooling for about 200 hours, the chamber cast will expand to about .0025″ larger than the actual chamber size.
