New Normal

“New Normal” What does that Mean for Reamer Rentals?

Personally, I hate the term “New Normal”. I refuse to believe we are stuck with these conditions for the long haul.  But, I feel keeping our clients updated if very important. Increased gun sales and ammunition shortages both drive more business to gunsmiths.  We supply tools to both hobby and professional gunsmiths.  Business is up,… Read more »

Thompson/Center Collectors Association

Thompson Center Collectors Association

Fall of 2020 issue of the “One Good Shot”, association President Art Lamontagne wrote about our services here at 4D.  Art ordered the reamer on his own nickle and we did not know about his affiliation with the organization.

4th Book in the “Gunsmithing Student Handbook Series” is Now in Print!

Being in the gun business for almost 40 years now I have become acutely aware if the lack of basics being taught in schools.  In particular in Occupational Trades institutions. Before you send me a nasty gram defending your favorite school keep in mind I teach at one of these colleges and have friends at… Read more »

4D-reamer-rentals

After Market Pistol Barrels

In 2018 a new condition became obvious to us here at 4D Reamer Rentals LTD. In the past we saw certain reamers receive damage because of aftermarket cylinders out of Russia or China.  They were hardened by the maker to the point that only Carbide tooling could be used on them successfully.  We had clients… Read more »

What is chip welding?

The Chamber reamers that we carry at 4D Reamer Rentals LTD are all High Speed Steel (HSS). When we inspect reamers upon return from rental we look for a few things. Obvious damage of any kind. (dings, chips, modifications, burns, rounded edges to name a few) Dirt/metal chips from the reaming process Oil (in excess)… Read more »

MEASURING FOR SCREW-IN CHOKES (Shotgun)

Before accepting a barrel for machining to accept screw-in chokes, you must measure the outside diameter (O.D.) to determine if there will be sufficient wall thickness after machining. “Mike” the O.D. of the barrel and the O.D. of the tap for the particular gauge. Subtract the O.D. of the tap from that of the barrel,… Read more »

To Laugh or Not to Laugh, That is the Question.

You hear some things on the phone that really make you laugh when you rent tools.  They might not be funny to the average tool user but maybe we need to share them to clear up some misunderstandings? One of my favorites is, “That barrel has been in the lathe forever waiting for the reamer.”… Read more »

P.O. Ackley

Ackley Category Added to the Site

We have seen a ton of demand for Ackley calibers since the publication of Fred Zeglin’s two new books in 2017.  For this reason we have created a category on the 4D web site to separate out all Ackley cartridges making them easier to find.  They still appear in the standard caliber listings as well…. Read more »

Me Me, its all about Me

Why Are There NO Good Gunsmiths Around Here?

Diplock’s Syndrome For those of you who have not read Fred Zeglin’s book on Wildcat Cartridges, here is a little excerpt you might find amusing. “Diplock’s Syndrome,”  a syndrome contracted by gunsmiths.  The cause is close contact with clients or customers who lack patience, and often what we used to call common courtesy.  Custom guns are hand… Read more »