ImjinScout
Member
Hi all, looking for some input on something I have run into and not sure why this is happening and would like to learn from some people with more experience then myself. OK here goes,
I had worked up loads for .40S&W for my FNX using HS-6, Hodgon site calls for 6.1 to 6.9 for 180gr bullet and a COL of 1.125. I use Berry's FP so I started at the low end and worked my way up to 6.7grs which I liked the best so that is where I stayed. My crimp diameter was from .422 to .424 depending on the mixed brass.
I just recently picked up a S&W 4003 TSW and first time to the range and noticed that my loads felt real hot for this gun. Didn't see any signs of over pressure it was just a feel thing. So I decided to work up some new loads, went to 6.5grs and those still felt too hot when shooting, so the next loads I went down to 6.2/6.3 and these felt real good. The only thing that I did different was went to a separate taper crimp die to get more consistent crimp at .422, I could probably go down to 6.0 grs for a more soft shooter but I think I will stay where I am at.
Any insight as to why this worked out this way, I was thinking it may be the crimp diameter but not sure, maybe the FNX had more gas leakage, I would like to hear some thoughts on this, thanks
I had worked up loads for .40S&W for my FNX using HS-6, Hodgon site calls for 6.1 to 6.9 for 180gr bullet and a COL of 1.125. I use Berry's FP so I started at the low end and worked my way up to 6.7grs which I liked the best so that is where I stayed. My crimp diameter was from .422 to .424 depending on the mixed brass.
I just recently picked up a S&W 4003 TSW and first time to the range and noticed that my loads felt real hot for this gun. Didn't see any signs of over pressure it was just a feel thing. So I decided to work up some new loads, went to 6.5grs and those still felt too hot when shooting, so the next loads I went down to 6.2/6.3 and these felt real good. The only thing that I did different was went to a separate taper crimp die to get more consistent crimp at .422, I could probably go down to 6.0 grs for a more soft shooter but I think I will stay where I am at.
Any insight as to why this worked out this way, I was thinking it may be the crimp diameter but not sure, maybe the FNX had more gas leakage, I would like to hear some thoughts on this, thanks