Sigma 40 Blaster
06-29-2007, 02:40 AM
Hey guys,
I have been loading .40 for a few months (a few thousand in a few months)...I bought 1000 bullets online, the description said 180 gr. TCFN BUT what I got was 175 gr SWC.
You can barely tell a difference as far as height goes, there is a very slight difference if you hit it with the calipers. I can't find a load for 175 gr. but it seems like my load for 180 gr. lead bullets (great in my gun) would work for a VERY slightly lighter bullet at the same OAL....notice I did say SEEMS. I'm thinking maybe I need to compensate OAL for the difference between the two different size bullets so the space in the case stays the same???
I am at nowhere near max load on my 180 grains, I'm going to start "cooking" Saturday and was curious to see if you guys had any suggestions/warnings about my semi-educated supposition.
Thanks
I have been loading .40 for a few months (a few thousand in a few months)...I bought 1000 bullets online, the description said 180 gr. TCFN BUT what I got was 175 gr SWC.
You can barely tell a difference as far as height goes, there is a very slight difference if you hit it with the calipers. I can't find a load for 175 gr. but it seems like my load for 180 gr. lead bullets (great in my gun) would work for a VERY slightly lighter bullet at the same OAL....notice I did say SEEMS. I'm thinking maybe I need to compensate OAL for the difference between the two different size bullets so the space in the case stays the same???
I am at nowhere near max load on my 180 grains, I'm going to start "cooking" Saturday and was curious to see if you guys had any suggestions/warnings about my semi-educated supposition.
Thanks