Quote:
Originally Posted by Copidosoma
Never chronographed my loads but...
I found that IN MY RIFLE Varget gave me some significant pressure signs (sticky bolt lift and extractor mark) when I tried a max load. RL 15 hasn't so far. The max for RL15 is 1 grain lower but according to the load data it should be producing similar velocities at max.
I also found that my rifle liked it more from an accuracy point of view. Significantly more.
Definitely worth a look.
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here's the deal for those not in the know with Varget ( and any other powder for that matter.)
Max load from manuals is exactly that - manuals.
the only way to test for a max load is with velocity ( chronographing) and measureing cases, because every chamber is different and every powder is different, or with a strain guage or other measueing device.
because the max load for a given pwder is in a book , doesn't mean that that powder will not develop a higher velocity with less powder with a particular firearm.
Only a chronograph will prove this out.
You may find that your max powder charge is in fact developing high pressures , but also very high velocity.
it may well be that changing a powder will result in less pressure signs, but it may well be way below top velocity with the other powdwer it a grain or two i backed off.
cat