The .257 Marksman (25 western)

[sierracharlie338]

Do it! Lol
It would be really cool to have more than just my data.

From what I've seen so far it's exactly what I wanted. If the barrel speeds up 50fps and I'm sitting at 3200 I'd say mission accomplished.

But realistically this is all doable with the 25-7 prc, just not in a short action.

Or like @hereinaz said similar to the 25sst, although maybe a bit faster? But then your into the Sherman dies and brass.

Hell I’d be tickled pink to be running at 3100 in a 20 inch barrel with 134s. Depending on how the rest of this year goes and the first couple weeks of Jan I may be getting a barrel spun up.

 

[WKR]

Hell I’d be tickled pink to be running at 3100 in a 20 inch barrel with 134s. Depending on how the rest of this year goes and the first couple weeks of Jan I may be getting a barrel spun up.

Are you a tikka or a 700 clone guy? I'm thinking 700 but can't remember?

 

[hereinaz]

Hell I’d be tickled pink to be running at 3100 in a 20 inch barrel with 134s. Depending on how the rest of this year goes and the first couple weeks of Jan I may be getting a barrel spun up.

Start buying more pink, cause you are gonna get tickled.

 

[sierracharlie338]

Are you a tikka or a 700 clone guy? I'm thinking 700 but can't remember?

Was a 700 guy for years. Started playing with the tikkas thanks to this place so either/or I guess at this point lol.

My wife unintentionally put me in a predicament this year after killing her first deer with my 25cm. She thinks she should get to keep it now!

So I have to decide where to go from there moving rifles around or building.

 

[WKR]

Looks like the Eld-m's are shooting a little better than the Bergers which surprised me.
I did break position between 3 shot groups. And had a lot of mirage coming off the suppressor.
I think when the barrel settles in and I use fire formed brass I will be able to tighten it up a bit.

 

[B23]

Any idea what case capacity is when necked to .257 I'm guessing it's just a sliver over what the 25 SAUM is and a little under what a 25 WSM would be.

My ADG 6.5 SAUM brass necked down to .257 holds exactly 73gr H2O.

I just got my ADG 270 WSM brass yesterday afternoon so I haven't had a chance to neck it to .257 and measure the case capacity but just guessing I think it'll hold around 79gr H2O but I'll know for sure here in a little while.

 

[WKR]

Any idea what case capacity is when necked to .257 I'm guessing it's just a sliver over what the 25 SAUM is and a little under what a 25 WSM would be.

My ADG 6.5 SAUM brass necked down to .257 holds exactly 73gr H2O.

I just got my ADG 270 WSM brass yesterday afternoon so I haven't had a chance to neck it to .257 and measure the case capacity but just guessing I think it'll hold around 79gr H2O but I'll know for sure here in a little while.

76.4 gr H20 ADG

 

[WKR]

Things are looking good with the 134's

 

[WKR]

Retumbo went 3220 at 67gr without any visible pressure or heavy bolt lift on virgin brass... definitely worth looking at. Accuracy potential is there too. This was 64-67gr in 1 grain increments

 

[Mike D Texas]

I have a 6.5 SAUM Improved that’s pushing 130 Terminal Ascents at 3250 with a 21” barrel.

I’m seriously considering having a barrel spun up for it in 25SAUM Improved.

It’s built on a Pierce SkeleTi action and the load port is long enough to run the UM short action BDM and still fit 3.150” in the magazine.


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[hereinaz]

I have a 6.5 SAUM Improved that’s pushing 130 Terminal Ascents at 3250 with a 21” barrel.

I’m seriously considering having a barrel spun up for it in 25SAUM Improved.

It’s built on a Pierce SkeleTi action and the load port is long enough to run the UM short action BDM and still fit 3.150” in the magazine.


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.25 is sweet, and you can keep much the same performance with a shorter barrel or cook it up faster. That 6.5 has to hammer critters.

What bullet would you shoot?

 

[Mike D Texas]

.25 is sweet, and you can keep much the same performance with a shorter barrel or cook it up faster. That 6.5 has to hammer critters.

What bullet would you shoot?

If I do the 25 SAUM Imp it would be the 134 LRHT most likely. They (LRHT in various calibers) are the most consistent bullet I’ve found in regards to drift/drop at really long distances out to 1 mile.

They line up perfectly with my Kestrel drops using advertised BC.

They seem to perform well on medium size game as well.


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