I've not seen the 80 grn. I have fired 69 grns. My 196 series mini likes the 63 gr. better. The newer mini's have a 9" turn riflings, while the older mini's have a slower 10" turn. I believe the 10" mini's shoot well up to 60 grns, while the newer mini's shoot up to the heaver 69 grn bullets. The faster turn rate is needed to stabilize the heaver bullets.
Now for some trivea. You sight in your mini using 45 grn bullets at 3600 ft/sec. Now you put in some heavier slower 63 grn bullets at 3000 ft/sec. Where will the POI (Point of Impact) be on the target with the heaver bullets?.......Ans. Higher.
Why?....Because the heavier bullet is slower getting out of the barrel. Since the recoil of the barrel is upward, the muzzle is higher by the time the bullet leaves the barrel.
Since each mini is different only buy a box or two to see if your mini likes em, before buying a large quant. Just my 2 cents
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