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"If it shows Sch.P., this is black powder."

Mike: I have no knowledge of other than Belgian proof marks, but the Lion over SCH or EC was the optional smokeless powder proofs used 1891-1924 for "Schultze" or "EC" powders, both of which were most certainly Bulk Smokeless Powder.



We've also seen Belgian proof with the Lion over M for Mullerite (another 42 gr. Bulk Smokeless) and Lion over E.C. no. 3; a 33 grain Smokeless

Dr. Hause is correct as that voluntary semi-smokeless proof of Schultze powder being some powder different from proof rules & is noted on the side of the scattergun tubes that were sourced from the Schilling forge. The solid projectile tube was also sourced from the Schilling forge. Black would have been something like NGPM 71... which may be seen on muzzleloaders, etc. Why pay for a voluntary proof of another black powder?

Cheers,

Raimey
rse

Wow thanks for all of your information! Looks like I posted this in the right place! I've learned a lot here. I'm not planning on firing this gun any time soon. Just adding her to my collection. What's the best way to get a 1902 German Drilling like this appraised? Any ideas of its approximate value? (Not that I'm selling. Just curious)

Brian

The gauge system was a rather crude method of marking rifle bores in that from .450" (51.05 ga) down they only seem to have marked in increments of .010".
118.35 gauge converts to .340" (8.64mm) bore size. Next size up the ladder is 51.05 @ .350" 8.89mm). Your actual bore size could be anywhere between these two dimensions. A 9.3x72R barrel I have was nitro proofed in 1913 & is marked as 8.8mm.
I have a 1907 8x58 Sauer barrel which is marked 172.28 (.300"/7.62mm) It has a groove dia of about .321". I forget the actual bore size but is larger than .300" yet smaller than .310" (156.14 ga). These gauges are calculated on the exact same basis as are the regular shotgun gauges. All gauges from 50 (.453") & larger ( lower numbers) are listed as whole number gauges with diameters carried to three decimal places.
Beginning with .450" down through .300" the diameters are in .010" increments with the gauge number being listed to two decimal places.
A barrel proofed for smokeless powder should have a crown over N stamped on it.

Drew, Raimey,
You are correct about that.

I'll have to review my notes on the AK mechanic but the SS is the renowned tube mechanic Stephan Schilling(sometimes seen as Str. Schilling) and he may have been in Suhl( Stephan Schilling, Gothaerstra�e 82 closer to WWII) or was back & forth between Suhl & Zella-Mehlis. But he was a staple for the tube effort on the wares of the Zella-Mehlis offerings. The possibility exists that there were a couple of generations.

Cheers,

Raimey
rse