.40s&w

I have been reading that the .40S&W is prone to case failure in glocks. I'm shooting a S&W sigma and would like to know if the sigma is safe to reload for. S&w says in its manual not to use reloads

Ok lets try this another way. Is there any reason why I shouldn't reload for the S&W Sigma pistol in .40S&W?

I have been reloading for my glock 23c for a couple of years with no proublems at all. The cases do have a slight bulge just above the web after being fired due to the unsupported space in the chamber. I have read that reloading is not reccomended for that reason. In a Glock you have to use jacketed bullets due to the polyogynal (how ever its spelled) rifleing. I use berrys plated bullets,they are cheaper than jacketed. I have been reloading for 35 years and reload just about everything. Tom

I'm shooting reloads in a CZ 75 with no problems.

I'am about to start loading 40 S&W using jacketed 180's. Just wondering what powders would work best?

I use w231 for most of the pistol calibers when using jacketed bullets. Works very good in the .40s&w . It meters good in a dillon 550.

I always had good luck using Accurate Arms #7 in my Glock 23. I preferred the 180 gr range bullets. Check your reloading manual, but It seems that a starting load was 7.9 grs. The AA #7 always worked in my full sized 10 MM too. (different load of course)

Mike1947

I noticed the #7 load data in my book (Lees Modern Reloading) but I dont have any & no place around here to get it. I've got #2 & 5 but dont think those will work. I've got a 4lb jug of 231 but its 15 years old & I dont have load data for powder that old. I bought it to use on 45acp but never did. When I started reloading in the mid 90's, accurate powder was what I used for all pistol & rifle. I could get it for 10-12 dollars a pound when the others about 14-15. All of the local stores that did sell reloading supplies have gone out of business. Closest store is Walmart 75 miles south of here & they dont carry any accurate powder. I hate to waste a 4lb jug of good powder.

kd5kpd I see a load in one of the AA Reloading guides for AA#2. Same bullet weight using a starting load of 5.0 And a AA#5 load of 6.5 to start. Might want to check our some other manuals for a 231 load. This book says:
AA#2 5.0 min and 5.3 max
AA#5 6.5 min and 7.2 max
Both using 180gr bullets. Just be careful, start at the min and watch for pressure signs, as you move up and don't exceed a recommended max. Good Luck.

I have reloaded and fired several thousand rounds of .40 S&W in my Glock 23 on my Dillion 550B. I use 4.4 grains of Titegroup with 180 grain jacketed bullets. When I first started loading the .40 S&W I'd heard all the 'stories'. For my own satisfaction, I bought 100 rounds of new brass and loaded them up and kept them seperate from other ammo when I fired them. I collected the brass, cleaned, and reloaded them again. Keeping these rounds segregated, I was able to shoot and reload them twelve times with no issues whatsoever. Just for superstitious reasons, I decided not to reload them the 13th time and I trashed the brass. My point is, with reasonable loads there is no reason to be concerned about reloading the .40 S&W round any more than any other round, and no reason to be concerned about reloading brass fired from a Glock or shooting reloads in a Glock.