28 grains of RL 7 out of a 223, will give your 4000 fps, with a 40 grain Ballistic Tip, and a little faster with a 35 grain BT/ Lead Free bullet. The brass doesn't seem to notice or care...
out of a bolt action at least.
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The second time I've seen a vid that featured the FX chrono. I seems to never miss a shot. A thousand bucks, but figure the price will lower some later.
Thinking I gave about $250 for my first chrono, likely $500 in 2023 dollars & I'd hate to add up the number of shots I fired over it that it didn't read.
The year 1935-220 Swift @4100fps. A 48gr bullet on top of non-canister IMR3031 says Phil Sharpe.
Sabots- see Remington Accelerator- 30-30 55gr. SP @3,400 fps-308 Win 55gr SP @3,770 fps-30-06 55gr SP @4,080 fps. Accuracy was really questionable with these. Maybe the sound of a bullet whizzing by scares groundhogs to death at 200 yds.
When did Labradar start to read over 4000fps? Thinking the video is a plug for the new $1000 device. My 35 year old Oehler works just fine. It misses very few shots if I use common sense in its set-up. Unsure of its top end. It read 4400fps last year with 40s out of a 22-250 Ackley. I wonder what even lighter bullets will do?
The Thermos killing dork in the video sounds like he has a giggler pin up his ass.
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