I shoot a 40 cal Springfield XD can I use the reloading data for a 10mm?
The only differance I see is the OAL for the 10mm is a little longer. If they are interchangable why differentiate between the two?
The reason I am asking is that I can find load data for the 10mm in the bullet gr I want for my 40 cal.
NO!!
Absolutely NOT. They are two completely different cartridges and load data is NOT interchangeable. The only thing they share is the bullet size and diameter. Using data for the 10MM in the 40 would be akin to using 300Win Mag data in a 308 because the share the same bullet and bullet diameter.
The 40 S&W has a case capacity of 19gr H20, the 10MM has a case capacity of 24gr H20. This is important and here is an example why.
QL Calculations.
40 S&W, 180gr Sierra JHP, Ramshot Silhouette, 6.2gr Max
Code:
+00.0 86 6.20 1032 426 33189psi 4289 97.6 0.464 ! Near Maximum !
10MM, 180gr Sierra JHP, Ramshot Silhouette, 8.4gr Max
Code:
+00.0 77 8.40 1216 591 35545psi 4635 100.0 0.501 ! Near Maximum !
This is what would happen if you loaded 10mm data(8.4gr) in the 40.
Code:
+00.0 116 8.40 1323 700 [B]75462psi[/B] 5310 100.0 0.328 !DANGEROUS LOAD-DO NOT USE!
That's 75K psi in you hands, gunna hurt to say the least.