Another option:
You could seat the bullets deeper.
44 special loads with 246gr LRN bullets take 11.3gr of 2400. 180gr JHC bullets take 16.0gr. Sounds like a 210gr bullet should take about 13.5gr. Now, with an OAL for 44special of 1.600 (published by alliant) for a 180gr bullet and a 246gr bullet OAL of 1.590, we can expect an OAL of 1.595 for a 210gr bullet.
200gr JHP bullets with 23.2gr of 2400 in 44mag are supposed to have an OAL of 1.575, according to alliant.
Split the difference, finding an appropriate OAL between the two. Seat them to about 1.585 and shoot them. That would give you a correct ignition pressure for a very spicey 44 special or very light 44magnum.
Of course, it's your @$$ if anything blows up, so you could pull them too.
Edited to add: Oops, saw it was 296, not 2400. I'll re-write for 296 in a sec.
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