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85gr sierra hp fb with accurate 2520 load development
#2
Neat. It's a good bullet. Intersting to see that you are crimping this thin jacket straight wall bullet in a bolt action rifle.

As to the increased velocity with the bullet hitting the lands, not super surprising since that will cause a pressure spike. Giving a faster and more complete powder burn. ... and a higher pressure spike to go with it. I don't really advise a hot load into the lands, personally.

Good to see all loads shot quite accurate.

Not surprised the hotter ones shot best. The hotter the load, thr more complete and consistent the powder burn will be.
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85gr sierra hp fb with accurate 2520 load development - by lazyengineer - 06-04-2022, 06:38 AM

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