I think from a practical standpoint, if you are looking to get a different clambering than .223, why not choose a cartridge a little further away from 5.56/223. A 6mm ARC or 6.5 Grendel would give you more case capacity and hence more performance and further differentiate the rifle compared to 5.56/223. Still has very mild recoil for young shooters.
But of course if you are set on the 6x45, go for it, just my .02.
Hawkeye, its a great round and is my favorite go to rifle. I have logged over 6,000 rounds through my 6x45 Ar15. Shot several deer, hogs and alot of varmints. I own a 223, 6.5grendel, 6.8 SPc and two Ar10 rifles in 6 creedmoor and 308win, but my favorite is the 6x45. Saturn barrels has ar15 6x45 barrels in stock, and they were the ones who sold them to MidwayUsa. Imr8202, H4895, CFE223 and few others are your friends when it comes to reloading the 6x45. For Ar15 is just a barrel swap and a set of dies.I'm thinking about this for my daughters, I like the the concept. What information do you guys have on application, hunting, accuracy, ease of loading?
I would twist it in say 1/9. 1/10 will get you to a 70 hammer but like other small cases the larger bullets although they have higher bc. People get caught up in that and give up a ton of performance by eating up case for powder. I tried 95gr in mine and it was not very impressive. Dropped to 85 and under seems much better.I bought a mark x 223 years ago and my dad was a stock and gun maker , and built a beautiful English walnut hand checkered stock for it for my 40th birthday . He passed away a few years ago and I inherited the one he had . Last night I saw this post and it gave me the idea . I don't know if any of you are familiar with that little Mauser but they were imported by or built by inter arms , very acc little rifles . I would definitely set it up twist wise for the Hammer bullet choices heavy and light . I'm still always building or rebuilding rifle's myself . That would be a neat little round for my grandson.
I was thinking it would be easier to get used 223 brass and just punch it up to 6mm.
Looking for something they can use for a very long time.
I've shot an AR in 6 x 223 for years. Pleasant gun to shoot.I'm thinking about this for my daughters, I like the the concept. What information do you guys have on application, hunting, accuracy, ease of loading?