Another suppressed Antique Marlin

adcoch1 said:

I can't help but be amazed by the octagon thread protector. I know how to build one, but it is just so cool on this rifle. Impressive work!

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Thanks!

That one was easily made from the barrel drop after cutting it to 16", then just timed so it lined up with decent but not ridiculous torque applied.

adcoch1 said:

Makes me want to do one on the end of my octagon rossi 357 lever rifle... Maybe with a stainless can to match.

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Do it!

I have another one that'll be done shortly, a refinished 1901 mfr. 1893 .25-35 that someone already shortened the barrel to 21" on and did a piss-poor job finishing the muzzle (not even straight), and installed an incorrect front sight on after planing the top of the barrel for it. That one will get external 1/2-28 threads and a taller sight.

I'm not gonna do my 1897, though. Or my 39A. .22 LR guns with 22" or 24" barrels just don't really need a can, same reason I'm leaving my 12A alone. Although the 25" barreled Legacy Escort with a can on it is pretty ridiculous, quieter than a Red Ryder...

And the other one, the 1901 mfr 1893 .25-35. As I mentioned, the barrel had already been chopped, and also reprofiled from octagon to round, so nothing lost in threading it. I think the natural finish tubeless 17-4 can looks good to it. What says the jury?








Whoever had worked on the thing shouldn't have. The front firing pin was bent, and the lever was bent, not allowing the rear firing pin to align with the front and hit a primer. Replacement front pin, then I had to heat, bend, 1500 grit sand and try to cold blue blend the heat affected area to the CCH. It came out pretty decent, and now it fires. Decent shooter, though the .25-35 is a little snappier than I had imagined it would be. Not loud, but it's also not that much quieter than .243, 6.5 CM, 7mm Mauser, 7mm-08 or .308 win suppressed, despite the much smaller powder charge.

LoonWulf said:

I think that's a good looking combo!

Is the sound signature of a round suppressed effected by case design?

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Not that I'm aware of. It's a function of powder charge, exit pressure, velocity, bullet diameter and bullet profile (assuming the same can). And it's the less aerodynamic profile and more sedate velocity that's the culprit here, causing the sonic crack to propagate closer in with a higher frequency to where it's blended with the report. The faster and sleeker the bullet, the less offensive the sonic crack is to the shooter (or anyone else behind it). More aerodynamic bullets disturb the air less, and faster bullets will have a lower frequency sonic crack as perceived from behind due to the Doppler effect.

If you get really close to a sound-deadening back stop like dry dirt, you can mitigate the crack, but then you're also dealing with reflected & refracted waves from the report. High velocity rifle round sonic crack may disappear if the backstop is within 10 or 15 feet, while slower handgun rounds will need to terminate much closer to muzzle, like 2-4 feet. Video is usually a poor way to judge high intensity sounds, but this one I did awhile back captured very well the effect of stopping bullets close in to get rid of the crack. Shooting from 0:35