07-02-2022, 01:50 AM
Bass, whoa... you need to come down to earth a bit. Speaking theoretically, yes tungsten is denser but IIRC it will be too hard for a core, won't deform like lead. Plus, it's expensive.
Why do you want a 103 lead free?
In the small-case cartridges like 6.5 grendel and 6mm Arc, you kind of need to keep within the boundaries they have to operate in. Not much excess case capacity for pushing speed. For the 6Arc if you want faster lead free, need to go lighter like the 85 gr Barnes. There are some smaller mfrs that also make good LF bullets like Maker bullets (the Trex) and cavity back bullets. Gotta go to their websites however to see what they offer, normally don't find them in any of the big-box retail or on ammoseek.
If you're not in Ca and can use lead core bullets might look at the 2 Sierras, 90 and 100 Tgk's. They have the longer sleeker secant ogive so can seat more normally in the 6Arc case.
Personally without looking in detil but my gut feeling is that a 90 CX won't give you much at 300 yds in the 6Arc.
But then again you didn't say "hunting" or "targets", so...
Why do you want a 103 lead free?
In the small-case cartridges like 6.5 grendel and 6mm Arc, you kind of need to keep within the boundaries they have to operate in. Not much excess case capacity for pushing speed. For the 6Arc if you want faster lead free, need to go lighter like the 85 gr Barnes. There are some smaller mfrs that also make good LF bullets like Maker bullets (the Trex) and cavity back bullets. Gotta go to their websites however to see what they offer, normally don't find them in any of the big-box retail or on ammoseek.
If you're not in Ca and can use lead core bullets might look at the 2 Sierras, 90 and 100 Tgk's. They have the longer sleeker secant ogive so can seat more normally in the 6Arc case.
Personally without looking in detil but my gut feeling is that a 90 CX won't give you much at 300 yds in the 6Arc.
But then again you didn't say "hunting" or "targets", so...