You're playing with fire to use LR primers in revolvers, you can get a slam fire against the recoil shield & that's not a good thing! Better to wait & find some LP primers & play it safe than damage your gun or your hand, your call.
I've taken many deer with 10.0 grs of Unique with the Keith 250 gr bullet, or you can deep seat it over the top driving band & drop to 7.5grs of Unique & get about the same velocity in a magnum case. It won't be exact but close, a deer won't know the difference.
If you look around you might find someone who will trade you 100 LP primers for 100 of something you have on hand, it's worth a try until things loosen up a bit, good luck.
Dick
