I have a sporterized T-38 with the military barrel shortened to 21" and rechambered to 6.5 Roberts. With 120gr .264 bullets I get 2"-4" groups. With 140 and 144gr .264 bullets I get 1" with my best at .6". I think the twist is 1:7.8" so your Type 38s will like the heavier/longer bullets. Hornady does make a .268" bullet, last I checked, I think it is a 160 RN.

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