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Hello,
I've just started reloading for 10mm. I have two different loading manuals, Lyman 48th edition and Speer #14. I'm using 180 grain bullets and Alliant Unique as propellant.
Here's the quIRKer, Lyman's min/max loads are 5.8/6.7 grs Unique and Speer are 7.2/8.0 with muzzle velocities 1018/1064 and 1043/1138. Speer uses this propellant weight for either TMJ FN or GDHP and Lyman uses Sierra JHP #8460.
Lyman uses universal receiver 5", Speer S&W M1006 5"
Both use CCI 300. Lyman uses Winchester/Norma brass, Speer doesn't specify
Both manuals say to NEVER exceed max loads. But here we can see that Speer's min load is .3 grs higher than Lymans MAX load.
The only difference I can see is the brand of bullets and brand of barrel used.
I played it safe and worked up from Lyman's min to Speers's min. And was not able to notice any difference in recoil in my Glock 20, (the only way I can judge since I don't have a chronograph, yet), between the two.
I'm to say the least a bit confused. Anyone care to weigh in on this.
/Bjorn
I've just started reloading for 10mm. I have two different loading manuals, Lyman 48th edition and Speer #14. I'm using 180 grain bullets and Alliant Unique as propellant.
Here's the quIRKer, Lyman's min/max loads are 5.8/6.7 grs Unique and Speer are 7.2/8.0 with muzzle velocities 1018/1064 and 1043/1138. Speer uses this propellant weight for either TMJ FN or GDHP and Lyman uses Sierra JHP #8460.
Lyman uses universal receiver 5", Speer S&W M1006 5"
Both use CCI 300. Lyman uses Winchester/Norma brass, Speer doesn't specify
Both manuals say to NEVER exceed max loads. But here we can see that Speer's min load is .3 grs higher than Lymans MAX load.
The only difference I can see is the brand of bullets and brand of barrel used.
I played it safe and worked up from Lyman's min to Speers's min. And was not able to notice any difference in recoil in my Glock 20, (the only way I can judge since I don't have a chronograph, yet), between the two.
I'm to say the least a bit confused. Anyone care to weigh in on this.
/Bjorn
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