Installing an Extra Stout Plunger Tube. Drill the holes using the drill guide.
Re-drill or ream the two new holes a little larger if and as needed, after trying the ESPT, until it will go in or most of the way in with thumb pressure. This ones’ going to need a little light tapping to get it seated—good.
After hours: Deer season is coming up, time to get the Winchester Model 1907 out again (ref post of Nov. 19th 2020). Ammo? You make it out of something else. Original ammo can be found for maybe $200 / box, and some custom loaders offer it, but it is not really that big a deal to make it. Take .357 Maximum brass, turn the rim down, cut an extractor groove, shorten the case. Add some 4227 and a Hawk JSP at about 1800 and you have an OK deer round. The original loading was a 180 JSP very similar to these but the consensus is that they did not expand well— the Hawks do.
This gun and cartridge was a favorite of lawmen and outlaws in the 20’s and 30’s. Somewhere in the vast expanse of the internet, within the last year, I ran across a site where people were discussing “go back in time and select better weapons for our troops, WWI and WWII” or something like that. These ‘07’s did see some use in WWI by the French as air-to-air rifles, but…. I think they’d have been great in the trenches too. Bigger magazines, say 20 rounds….. double-stack had already been done. Cut barrel to 14”—I don’t think this cartridge would miss the 20” barrel much. The 07’s predecessor was the ’05, in .35 SL, basically the same cartridge but shorter. And weak enough to have earned the name “the must useless rifle cartridge ever offered”. The ’05 was also offered in .32 SL….. also pretty weak and yet it is said to have been the basis for the .30 M1 Carbine round. One thing to keep in mind through is that all the WSL’s to include the mighty .401 WSL, were straight blowback—no locked breech, just a massive bolt. The .401 generates the muzzle energy of a .30-30, with an unlocked bolt.
For the “use it in WWI” exercise I might say switch it to a .30 caliber. Neck down the .351 WSL case, make it rimless (it is semi-rimmed)….. I’m picturing something like the .300 Whisper. Now that the Whisper is SAAMI-codified as the .300 AAC Blackout, we know it is meant to run at the same pressure as .223: 55,000 PSI max. Not sure we can make that compatible with straight blowback and since the .351 WSL predates SAAMI (and the Model T Ford!), I can only guess what pressures it might run at, I’m thinking 36-38,000. The late-WWII 7.92X33 for the Sturmgewehr (STG44 / MP44) had a 123 grain Spitzer at 2250fps, at 49,300 PSI. Well, within that 38K PSI parameter I’m thinking one of these 07’s might run .300 Whisper with, say, the original .30-06 bullet of 150 grains at close to 1900-ish FPS— ballistically speaking, pretty superior to the .30 M1 Carbine (40,000 PSI max) that would not come along for another 25 years. 14” barrel? I’d talk to Mr. Maxim about what he could do for us without lengthening it more than another 4”.
Left to right, .357 Maximum case, one of last year’s empties made from same, one in the chuck getting the business, a 180 Hawk above it, and on the right a handload with a cast 180 round nose.
That is not rust on the chuck, it is walnut dust!