Can anyone identify these blanks or know what firearm they are for? All I found online was that they may be for a navel or firefighters line throwing gun or possibly saluting blanks. Looks like they are based on a 577/450 brass but are longer with no bottleneck. Shown with a 577 snider and 577/450 for comparison.
Line throwing gun blank?
- Thread starter jasonf
- Start date
A bottleneck 577/450 blank.
The ctg shown in the original post is one of a quantity discovered by a collector about 40 years ago. This lot was recently sold at auction in several10 round lots. The definite purpose of these ctgs are undetermined yet.
The Martini harpoon guns were made in more than one caliber. The one that I saw (and fired one shot from) took .38 blanks in the harpoon head. Kicked like a mule. I have also seen a Japanese made line throwing gun which might have been 450-577 (can't remember) It had a steel stock and a sort of plumb bob sight to show what angle you were shooting at
cheers mooncoon
- Location
- Southern Vancouver Island
The Costin guns we used back in me early days with the DND Fire Service were H&R made single shots using 45-70 blanks to toss the line. They kicked rather hard, but when wearing our turnout coats, the recoil was tolerable. These buggers were built on a 10 ga H&R frame. Real fun to see rookie operators fire these. 
