I recently bought a box of this ammo, #E380B1, for the heavier bullets. They had flat nose of about .2" diameter. Soon after that I picked up another box.
Yesterday I shot 46 of the first box to see how it would function in my LCP, and it worked 100%. I decided to make this my carry ammo on account of the 100gr bullet.
Today I took the remaining four Sig rounds from yesterday and opened the second box to load some mags. Sounds simple enough, but the newer box has RN instead of FN bullets. I checked the boxes and they both have the same #E380B1 on them. I measured and weighed four of the FN and RN. Both boxes have pics of RN, btw.
The 100gr FN cartridges averaged 151.78gr.
The 100gr RN cartridges averaged 155.4gr, an average of 3.62gr more.
I'll disassemble one or two of each and weigh the components. I would expect two 100gr bullets to weigh about 100gr each no matter what their shape. I wouldn't be concerned if the bullet shape was all that changed, but an additional 3.62gr makes me curious. That would be a lot of extra powder in a .380. It could be a heavier charge of a different powder...don't know.
It'll be interesting to see how this checks out.
Yesterday I shot 46 of the first box to see how it would function in my LCP, and it worked 100%. I decided to make this my carry ammo on account of the 100gr bullet.
Today I took the remaining four Sig rounds from yesterday and opened the second box to load some mags. Sounds simple enough, but the newer box has RN instead of FN bullets. I checked the boxes and they both have the same #E380B1 on them. I measured and weighed four of the FN and RN. Both boxes have pics of RN, btw.
The 100gr FN cartridges averaged 151.78gr.
The 100gr RN cartridges averaged 155.4gr, an average of 3.62gr more.
I'll disassemble one or two of each and weigh the components. I would expect two 100gr bullets to weigh about 100gr each no matter what their shape. I wouldn't be concerned if the bullet shape was all that changed, but an additional 3.62gr makes me curious. That would be a lot of extra powder in a .380. It could be a heavier charge of a different powder...don't know.
It'll be interesting to see how this checks out.