I shoot TMKs in .308 and .223 and found that loading them out results in better accuracy than seating them at the Sierra recommended 2.800 and 2.260 respectively.
I seat them out so the jump is the same as for the SMKs.
With the .308, the Savage mags are deep enough to handle the extra length.
With the .223 69 and 77 grain TMKs, that makes them too long for the AR magazines on my Les Baer so I shoot them with a single round follower.
With those two calibers, the TMKs are at the top of my best load lists with multiple powders.
For two .308 rifles, the top 25 loads for both rifles are with 155, 168, 175 and 195 TMKs exclusively, but one of the rifles prefers heavy bullets and the other prefers lighter bullets.
The Les Baer includes 8 loads with TMKs out of the top 25 loads (7 of the 8 are 77 TMKs) with 5 of the top 10 loads being TMKs.
The ogive on both caliber TMKs are about in the same positions as the ogives on the equivalent weight SMKs but the TMKs are at least 0.08 longer because of the tips.
Yet Sierra recommends seating them back so the O.A.L. is the same as the SMKs.
I asked Sierra if they recommended the shorter O.A.L. to accommodate the AR shooters magazines and the tech that I talked to (via their chat line) admitted that that was the case, especially for the .223 69 and 77 grain TMKs.
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