This is hard to explain when I'm typing it out so bear with me.
Is it unsafe to load .38 Specials to .357MAG powder levels using IMR 700-X?
Hodgdon.com has a generic 125g cast LRNFP with 700-X for the .38spc
Quote:
125 GR. CAST LRNFP IMR 700-X .358" 1.445" 3.7 982 14,500 PSI 4.2 1076 16,200 PSI
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They also have 125g MEI CAST LRNFP with 700-X for the .357MAG
Quote:
125 GR. MEI CAST LRNFP IMR 700-X .358" 1.580" 4.0 1069 13,500 PSI 5.5 1311 21,800 PSI
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Those formulas are for pistol and I'm actually shooting them out of a 19" leveraction rifle, hence the slow powder choice
I've worked up a load for .357 that was great shooting and didn't show any pressure signs and was very accurate. 5.2grains with a COL of ~1.575(it was seated at the cannelure).
Would it be unsafe to work up a load for 38 Specials that went above the published max since there would still be a lot of empty space above the powder and it's in a rifle that can handle .357 MAG pressures?