260 in a short action, ANY limitiation on bullets?

[SteveOak]

In say a Rem 700 or Rem 700 clone short action, is there ANY .264 bullet that presents an OAL problem either mag limitation or extracting an unfired round? I'm not above pulling the bolt in the rare instance when I might need to extract an unfired round, just exploring options.

I'm thinking a chassis. Some of them may accomodate mags which will tolerate longer OAL although my first choice would be a single shot action.

A long action would not be a deal breaker, just exploring options. I may end up with a 6.5-284, or outright 284, or not even go there. I am thinking my way through a rifle to shoot casually at 1 mile. I'm going to shoot my 6 BR at 1,000 before I make a decision.

 

[drop_point]

.260 will work in a short action, I ran AW magazines in a couple of them and it offered a little more OAL than AICS magazines.

6.5-284 is going to be a no-go in short-actions if you want to magazine feed.

If you have a BR and you're planning on a cartridge for over 1,000 I think you can choose better cartridges than anything 6.5mm. I'd be looking 7mm and up. The .284 Win would be my choice of the cartridges you mentioned.

 

[SteveOak]

Thank you for your reply.

I am asking a bullet question rather than a cartridge question. I understand that 260 rounds with some bullets fir mags and can be extracted without removing the bolt. I am asking if there are any bullets that cannot or have magazine limitations. The Berger 6.5mm 153.5Hybrid Target bullet is 1.514" long, although that may be a bit heavy for a 260.

 

[CJ6]

With "Remington " chambers anyway some 140s will be pretty deep seated.

 

[J.d. Popkes]

In say a Rem 700 or Rem 700 clone short action, is there ANY .264 bullet that presents an OAL problem either mag limitation or extracting an unfired round? I'm not above pulling the bolt in the rare instance when I might need to extract an unfired round, just exploring options.

I'm thinking a chassis. Some of them may accomodate mags which will tolerate longer OAL although my first choice would be a single shot action.

A long action would not be a deal breaker, just exploring options. I may end up with a 6.5-284, or outright 284, or not even go there. I am thinking my way through a rifle to shoot casually at 1 mile. I'm going to shoot my 6 BR at 1,000 before I make a decision.

Take a 260 case. Seat a 140 well out of the donut. Then measure a mag with no binder plate.

Short action is gonna hold you back from what you’re trying to do.

 

[SKWERLZ]

it can get a bit tight and need to seat bullets a bit deep with 140 and bigger bullets especially in a 2.85 magazine.
I ran 2.95 magazines with my 260.

 

[DaveTooley]

Best case is a short throated reamer. I have reamers with a freebore from .040" to .090" in .010" increments. A short action with long bullets always has a few compromises. Nothing you can't manage.
Ever consider a 260 AI?

 

[SteveOak]

Thank you Dave. If I go with a 260 I will likely do an AI so I can push heavier bullets better. Also for nostalgic reasons. I was shooting a 6.5-08AI before Remington commercialized the 260 which they did so Dave Zander could shoot it in hunter class NRA High Power Rifle Silhouette.

Having to pull the bolt to extract a loaded round and forgoing a magazine is not a big deal. I'm just looking to understand the situation going in.

The other way to go would be to shorten a 284 case to where it had about the same capacity as a 260AI to make room for longer bullets. Making cases and dealing with doughnuts would be a PITA though.

 

[DaveTooley]

Thank you Dave. If I go with a 260 I will likely do an AI so I can push heavier bullets better. Also for nostalgic reasons. I was shooting a 6.5-08AI before Remington commercialized the 260 which they did so Dave Zander could shoot it in hunter class NRA High Power Rifle Silhouette.

Having to pull the bolt to extract a loaded round and forgoing a magazine is not a big deal. I'm just looking to understand the situation going in.

The other way to go would be to shorten a 284 case to where it had about the same capacity as a 260AI to make room for longer bullets. Making cases and dealing with doughnuts would be a PITA though.

I have a -.100" short 6-284. Hopefully the barrel will die the same time I run out of brass. Should have been a 243AI.

 

[STOMP442]

Even with 140 bullets seated deeper in the case the 260 will shoot extremely well and out perform the Creed velocity wise. I have never had an issue running mag length and getting the 260 or the 260AI to shoot well. My 260AI on a short action Rem is pushing 140 Bergers at 2940 fps at mag length and shoots under half MOA doing it.

 

[SteveOak]

@STOMP442

At what distance please?

 

[Bill Norris]

Even with 140 bullets seated deeper in the case the 260 will shoot extremely well and out perform the Creed velocity wise. I have never had an issue running mag length and getting the 260 or the 260AI to shoot well. My 260AI on a short action Rem is pushing 140 Bergers at 2940 fps at mag length and shoots under half MOA doing it.

My 260AI has .060 F B and I shoot the 140 gr. class bullets and even though the bullet pressure ring is inside of the donut area I have no issues at all. However, I do run a .262 expander in the necks following the .290 bushing prior to seating the bullets. Last time I chronoed that load the speeds were averaging 2948 FPS with E S averaging around 10 FPS. This is a BR single shot rifle.

 

[SKWERLZ]

Even with 140 bullets seated deeper in the case the 260 will shoot extremely well and out perform the Creed velocity wise. I have never had an issue running mag length and getting the 260 or the 260AI to shoot well. My 260AI on a short action Rem is pushing 140 Bergers at 2940 fps at mag length and shoots under half MOA doing it.

Same
I had 147’s at mag length and they did awesome.
Way deep in the case.

 

[SteveOak]

This is great info!

I want to avoid the deep seating.

 

[SKWERLZ]

This is great info!

I'm want to avoid the deep seating.

Then here’s what I did
Add a bit extra freebore
Run 130 Berger OTM at mag length.
For longer range loads run 140 or heavier at single feed length.

 

[DaveTooley]

I like your idea of using a single shot action. I've often wonder why more people don't use one.

 

[STOMP442]

@STOMP442

At what distance please?

Furthest I have grouped that rifle was 700 meters and it will hold half MOA or better if I do my part right. It's a hunting rifle so I don't shoot a ton of groups with it just take it out to verify data before a hunt type of thing. Best three shoot group I have had with it was sub 2" at 600 yards. I could cover all three with a spray paint can lid.

 

[Daddycaddie67]

Then here’s what I did
Add a bit extra freebore
Run 130 Berger OTM at mag length.
For longer range loads run 140 or heavier at single feed length.

This is what I had to do as well. I’m using the AICS mags that are 2.285” and am running the OTM’s at 2.275”. I tried the Berger 140’s but if memory serves me I ran out either case capacity or length.
This is a Savage model 10, when I did the initial seating test it was in a Bell and Carlson blind mag stock which had a lot of room and I recently changed over to a chassis system in order to run magazines.
The OTMs shoot very well and gives me plenty of velocity. Hope this helps. E

 

[ELR LVR]

In say a Rem 700 or Rem 700 clone short action, is there ANY .264 bullet that presents an OAL problem either mag limitation or extracting an unfired round? I'm not above pulling the bolt in the rare instance when I might need to extract an unfired round, just exploring options.

I'm thinking a chassis. Some of them may accomodate mags which will tolerate longer OAL although my first choice would be a single shot action.

A long action would not be a deal breaker, just exploring options. I may end up with a 6.5-284, or outright 284, or not even go there. I am thinking my way through a rifle to shoot casually at 1 mile. I'm going to shoot my 6 BR at 1,000 before I make a decision.

Should be no issues
I built one on a Ruger American short action and Magpul DM hunter stock.
Called out a short .060 freebore
Worked great to fit everything from 147 ELD-Ms to 153.5 Bergers in a 308 Mag.
Shot very accurately.
I would suggest calling out a 1.5 degree leade angle. as the standard 260 uses a 3 degree
or go 260 AI which has 1.5 degree built in
----------------------------
Or get a throater with a `1.5 deg throat leade angle and call out a zero freebore reamer and set your own freebore
----------------------------
Mine shot the 153.5 Berger the best, approx 2 inch / 3 shot groups at 600 yds
Even with different guy's shooting the gun.
One guy who had never even shot 600 yds before offered to buy that gun because, as he put it
"Thats the only gun I've ever shot that could hit a mouse at 600 yds "
----------------------------
Long story short, Yes!!! Try the 153.5 Berger

 

[muleystalker]

Order a Borden Mountaineer RR single shot and have Jim put the Magnum port on it, it's a little longer than standard and will allow you to seat the 153.5 Bergers where they need to be. The RR designation gives it the Rim Rock bolt tolerance and timing which is nice. The Mountaineer is a RimRock that is a 700 clone.