Source for a 9x21 or 9X23 reamer?
- Thread starter hayday
- Start date
Ahh.
Someone did a little research, and found 9x21mm superiority over 9x19 para.
You can thank Russians for that, and Isreali IWI/IMI for their copy.
If you search you can find some once fired IWI or gyurza casings in 9x21mm.
These are the best, their metallurgy of alloyed steel keeps form, they expand slightly and contract back to original form.
There are some companies making similar in one piece or two piece, the case rim, head being aluminum alloy.
The Russian and Isreali military and police casings are the best.
If you search you can find 7H29, and 7BT3 projectiles for hand loading.
Look to the 'evil/good' east countries, from canadian topographical declination viewpoint, and Israel for your search.
As for the reamer to rent, I don't know, I wouldn't think too many would rent out.
Maybe search for gunsmith to ream for you, or a 9x19mm reamer could work if depth set of the difference of a maximum depth of a whole 2mm, or difference of 0.25mm gyurza/IMI. Or by carefully by hand with an end mill finish reamer of exact diameter.
The specs are:
9x21mm gyurza:
Shoulder diameter 9.6 mm (0.38 in)
Base diameter 9.9 mm (0.39 in)
Rim diameter 9.9 mm (0.39 in)
Rim thickness 1.2 mm (0.047 in)
Case length 20.9 mm (0.82 in)
Overall length 32.7 mm (1.29 in)
9x21mm IMI:
Neck diameter 9.63 mm (0.379 in)
Base diameter 9.93 mm (0.391 in)
Rim diameter 9.96 mm (0.392 in)
Rim thickness 1.27 mm (0.050 in)
Case length 21.15 mm (0.833 in)
Overall length 29.75 mm (1.171 in)
Case capacity 1.01 cm3 (15.6 gr H20)
9x19mm para
Neck diameter 9.65 mm (0.380 in)
Base diameter 9.93 mm (0.391 in)
Rim diameter 9.96 mm (0.392 in)
Rim thickness 1.27 mm (0.050 in)
Case length 19.15 mm (0.754 in)
Overall length 29.69 mm (1.169 in)
Case capacity 0.862 cm3 (13.30 gr H2O)
So you can see if chamber reamed for the IMI 9x21mm, the 9x21mm gyurza will work. You just need the ensure you use a proper protrusion length of firing pin, as well as harder primers.
All the above 9x21mm feed normally in 9x19mm para magazines. (projectile length and depth of projectile seating is crucial in calculation)
They also work in unsupported and of course fully supported chambers, especially if the military police casings are used.
Brass casings can bulge at or around the base in unsupported chamber with the hotter loads of 9x21mm
Someone did a little research, and found 9x21mm superiority over 9x19 para.
You can thank Russians for that, and Isreali IWI/IMI for their copy.
If you search you can find some once fired IWI or gyurza casings in 9x21mm.
These are the best, their metallurgy of alloyed steel keeps form, they expand slightly and contract back to original form.
There are some companies making similar in one piece or two piece, the case rim, head being aluminum alloy.
The Russian and Isreali military and police casings are the best.
If you search you can find 7H29, and 7BT3 projectiles for hand loading.
Look to the 'evil/good' east countries, from canadian topographical declination viewpoint, and Israel for your search.
As for the reamer to rent, I don't know, I wouldn't think too many would rent out.
Maybe search for gunsmith to ream for you, or a 9x19mm reamer could work if depth set of the difference of a maximum depth of a whole 2mm, or difference of 0.25mm gyurza/IMI. Or by carefully by hand with an end mill finish reamer of exact diameter.
The specs are:
9x21mm gyurza:
Shoulder diameter 9.6 mm (0.38 in)
Base diameter 9.9 mm (0.39 in)
Rim diameter 9.9 mm (0.39 in)
Rim thickness 1.2 mm (0.047 in)
Case length 20.9 mm (0.82 in)
Overall length 32.7 mm (1.29 in)
9x21mm IMI:
Neck diameter 9.63 mm (0.379 in)
Base diameter 9.93 mm (0.391 in)
Rim diameter 9.96 mm (0.392 in)
Rim thickness 1.27 mm (0.050 in)
Case length 21.15 mm (0.833 in)
Overall length 29.75 mm (1.171 in)
Case capacity 1.01 cm3 (15.6 gr H20)
9x19mm para
Neck diameter 9.65 mm (0.380 in)
Base diameter 9.93 mm (0.391 in)
Rim diameter 9.96 mm (0.392 in)
Rim thickness 1.27 mm (0.050 in)
Case length 19.15 mm (0.754 in)
Overall length 29.69 mm (1.169 in)
Case capacity 0.862 cm3 (13.30 gr H2O)
So you can see if chamber reamed for the IMI 9x21mm, the 9x21mm gyurza will work. You just need the ensure you use a proper protrusion length of firing pin, as well as harder primers.
All the above 9x21mm feed normally in 9x19mm para magazines. (projectile length and depth of projectile seating is crucial in calculation)
They also work in unsupported and of course fully supported chambers, especially if the military police casings are used.
Brass casings can bulge at or around the base in unsupported chamber with the hotter loads of 9x21mm
