My 25x45 AR

[KAG]

Saying hello, basically I am a quarter bore whore myself.

I have a 25x45 barrel made for me by BlackHole and I have been doing lots of work with it. Its a sweet shooter. Just basically re-size, load, and squeeeeeze. Been shooting mainly Sierra 70gr BK's but I did kill a deer a month ago using a 100gr SP. Very accurate so far with just about everything I have shot out of it. Its a 20" varmint contour, crowned. Right now I have it topped with a Nikon M-223. Jewel trigger in it.

Been using quite a few different powders working with it but currently using the New AR-Comp powder from Alliant. So far so good....now that deer season is over I hope to be able to post up some coyote pics as the season progresses. I have only chrono'd a few as I am firmly in the accuracy trumps speed camp but I did get 2926fps with Sierra 70gr BK's and H335 25.3gr.









My Son took a Coyote in New Mexico

[tp555]

I make 25-223 barrels for a guy in NY.Basically 223 necked up to 25 cal.So they can use their ar's for hunting.Guy says works fine on deer.

[KAG]

Originally Posted by tp555

I make 25-223 barrels for a guy in NY.Basically 223 necked up to 25 cal.So they can use their ar's for hunting.Guy says works fine on deer.

I have one of those 25-223's..... I learned a lot from shooting the 25-223. Based on what I learned I went to the 25x45. There is No trimming back the case neck..... just neck up, load, and shoot. It does top out in the 100gr bullet area, I have shot heavier but it is not well suited to shooting them efficiently. The deer above thought the 100gr SP was more than enough.

I would love to talk to you about the barrel I got in 25-223

[7.62 Nato]

Originally Posted by KAG

I have one of those 25-223's..... I learned a lot from shooting the 25-223. Based on what I learned I went to the 25x45. There is No trimming back the case neck..... just neck up, load, and shoot. It does top out in the 100gr bullet area, I have shot heavier but it is not well suited to shooting them efficiently. The deer above thought the 100gr SP was more than enough.

I would love to talk to you about the barrel I got in 25-223

Welcome to Quarterbore. That's a nice looking buck. What's the difference between the 25x45 and the 25-223 ? Aren't they both 45mm long cases ? I'm looking at a 6x45 AR build since I already load 223, and 243.

[sha-ul]

looks interesting

[KAG]

Originally Posted by 7.62 Nato

Welcome to Quarterbore. That's a nice looking buck. What's the difference between the 25x45 and the 25-223 ? Aren't they both 45mm long cases ? I'm looking at a 6x45 AR build since I already load 223, and 243.

Both are based of the 223 parent case. The 25-223 after re-sizing you must trim the neck back from standard 223 case lengths an additional 2mm or so (43mm case) to achieve FFF.

I decided since I wanted to predator hunt with light bullets mainly and I was sick of trimming brass, I decided to go with a 25x45. The 25x45 is simply trimmed to 223 lengths like you would normally do then you re-size, load, and shoot. No extra trimming. I made some changes to the barrel I ordered for it. To me, the 25x45 just makes much more form and function sense for what I am doing. I buy once fired mainly military brass that has been cleaned and trimmed already, place out in Colorado. I have never had to trim one piece of brass after sizing it to .257 yet.......that alone is fantastic.

I also have a 6x45, not going to knock it as it's a good cartridge. I do not shoot it much but I have killed several coyotes with it. I can also shoot 100gr bullets with it also.

[7.62 Nato]

Thanks for the information. I don't know a lot about the 6x45 yet, and knew nothing about the 25x45. From what I understood, the 6x45 doesn't need to be trimmed to length after necking up 223. What barrel length, gas length, and twist did you use in your 6x45? I'm looking at carbine probably.