chiltech500
Member
Ok gents,
Here in raw form is chrono data from a new ProChrono (which worked 100% reliably). There is some head scratching stuff here like why is the N310 4.0 gr pushing a 200gr lswc results so erratic. Why is .02 grains less of N310 with the same bullet generating over 100 FPS more velocity? OAL's are 1.255 on the 200 gr LSWC and 1.110 on the 185 gr lead bullets.
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Well, for starters the 4.0 gr loads of N310 pushing the 200gr bullet are older and I discovered the bullets are not from Missouri Bullets. Also, the 4.0 gr loads of N310 were Small Primer vs the 3.8 gr loads being Large Primer.
Here in raw form is chrono data from a new ProChrono (which worked 100% reliably). There is some head scratching stuff here like why is the N310 4.0 gr pushing a 200gr lswc results so erratic. Why is .02 grains less of N310 with the same bullet generating over 100 FPS more velocity? OAL's are 1.255 on the 200 gr LSWC and 1.110 on the 185 gr lead bullets.
Well, for starters the 4.0 gr loads of N310 pushing the 200gr bullet are older and I discovered the bullets are not from Missouri Bullets. Also, the 4.0 gr loads of N310 were Small Primer vs the 3.8 gr loads being Large Primer.
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