signal_4 Posted August 13, 2023 Report Share Posted August 13, 2023 (edited) Hi ! I was recently given an Arisaka Type 38 Carbine by my neighbor ! While going over it, I saw the receiver marked ““converted to 250-3000”. I’m assuming this means the Savage 250-3000 round that was probably commonly available at the time. My question is, can the rifle still fire the original 6.5x50 rounds without any issues ? I read on an older post that implied that it was interchangeable but the poster never stated the details Thanks a bunch ! Altan Edited April 19, 2024 by signal_4 Link to comment Share on other sites More sharing options...
StrangeRanger Posted August 13, 2023 Report Share Posted August 13, 2023 The head diameter of a .250 Savage is .468", for the 6.5 Jap it's .455" Even if the other dimensions were compatible (and they aren't) that .013" difference would probable result in a blown case head. I don't know where the shoulder for a 6.5 Jap is located but it is almost certainly not as far forward as that of the .250 meaning another place to lead to a case rupture That combined with the fact that the bore is .006" too large for the .250 Savage and will significantly reduce accuracy makes the whole thing a really bad idea. Your best bet is to get a chamber cast and see exactly what you're dealing with. you may end up having to go with a 6.5x.250 Savage wildcat Link to comment Share on other sites More sharing options...
StrangeRanger Posted August 14, 2023 Report Share Posted August 14, 2023 (edited) Dimensions taken from an older Sierra manual I wouldn't touch that thing without a chamber cast. The shoulder on the Jap round is further forward than that of the Savage so a rechamber won't work unless the barrel has been set back. The "normal" rechambering for these rifles is the 6.5x.257 Roberts (7x57 case) which will give a cleanup of all the dimensions Edited August 14, 2023 by StrangeRanger Link to comment Share on other sites More sharing options...
signal_4 Posted August 14, 2023 Author Report Share Posted August 14, 2023 Gotcha ! Ya I’m going to take it and do exactly that ! There’s a barrel/receiver on GB right now too that’s not modified so that might be an option to switch out. I really appreciate the words of wisdom and taking the time to look into and share the drawings Sir ! Many thanks ! Altan Link to comment Share on other sites More sharing options...
BillyDixon Posted August 19, 2023 Report Share Posted August 19, 2023 ive seen several 6.5 jap rifles rechambered to 257 roberts, that was the fad when sporterizing jap rifles back in the 1940- 1960s , a lot of write ups in american rifleman and other gun mags back in the day, just sayn Link to comment Share on other sites More sharing options...
signal_4 Posted November 13, 2023 Author Report Share Posted November 13, 2023 So I wound up scraping the barrel. Picked an original in excellent condition off GB and got it installed !!!! Link to comment Share on other sites More sharing options...
william31 Posted November 16, 2023 Report Share Posted November 16, 2023 I think you did the right thing. Steinel Ammo currently has 6.5 arisaka in stock, expensive but really good ammo. Have fun. William Link to comment Share on other sites More sharing options...
signal_4 Posted November 21, 2023 Author Report Share Posted November 21, 2023 On 11/16/2023 at 1:12 PM, william31 said: I think you did the right thing. Steinel Ammo currently has 6.5 arisaka in stock, expensive but really good ammo. Have fun. William Yes that whom I got a few boxes from. It shot very well. A very light almost hair trigger pull though. Were they originally like that or is my sear wearing out I wonder. Link to comment Share on other sites More sharing options...
signal_4 Posted January 13, 2024 Author Report Share Posted January 13, 2024 I got me a really nice dated June 44 Japanese good luck flag and comfort carry case to go with my Arisaka display ! Some of the nice people on https://www.warrelics.eu/forum/ were happy to do some translating of the flag. Google translate for the comfort bag. Link to comment Share on other sites More sharing options...
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