Thread: Lower than expected velocities

Yeah, it's nice to use cartridges to their potential though.

Originally Posted by Longrun

Yeah, it's nice to use cartridges to their potential though.

Perhaps you purchased the wrong chambering then.

Originally Posted by Oldbloke

Perhaps you purchased the wrong chambering then.

Originally Posted by Oldbloke

Perhaps you purchased the wrong chambering then.

Not so much the wrong chambering as the same factors would likely influence whatever else is chosen. It comes back to the trajectory, every extra inch of drop at 100 shortens your usable effective range by a noticeable chunk. The only way to alleviate that is reduce the drop, which means running warmer loads...

Originally Posted by No.3

Not so much the wrong chambering as the same factors would likely influence whatever else is chosen. It comes back to the trajectory, every extra inch of drop at 100 shortens your usable effective range by a noticeable chunk. The only way to alleviate that is reduce the drop, which means running warmer loads...

Well, that's my point. The chambering he selected can't do what he wants. Should have purchased one that can realistically achieve more speed. Which probably means a lighter pill too.

People buy rifles based on what the max is, instead of what it can easily/realistically achieve.

Or, simply adjust your expectations.

Originally Posted by Oldbloke

Well, that's my point. The chambering he selected can't do what he wants. Should have purchased one that can realistically achieve more speed. Which probably means a lighter pill too.

People buy rifles based on what the max is, instead of what it can easily/realistically achieve.

Or, simply adjust your expectations.

Garbage. All of the data can't be incorrect. I expect to achieve an accurate 100gr load with no pressure signs at around 3200fps. There's shit loads of data and real world experience to support this. Some of which is kindly posted in this thread.
Whether I achieve that with stabal 6.5 is yet to be decided.

hi nice calibre i have sauer 202 in 25-06 im running nosler 100 gr ballistic tip with ww780 58gr for 3347fps try slower powder may help

Max velocity gets you reduced case life, more throat erosion, burns more powder, recoils a bit more which can help refine a flinch nicely. Accuracy Uber alles for me with as much speed as practical

Nice collection of 1/4 bores there @Tech

Originally Posted by Longrun

Nice collection of 1/4 bores there @Tech

Thanks, there is also a 257 Roberts and a 250 Savage AI hiding in the safe.

Originally Posted by Tech

Thanks, there is also a 257 Roberts and a 250 Savage AI hiding in the safe.

All you need now is a 257 weatherby mag to round out the Stable


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Originally Posted by gregdudehunter

All you need now is a 257 weatherby mag to round out the Stable


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That thought has crossed my mind. Something like a Weatherby Mk V Euromark with the oiled wood stock would be nice.

Originally Posted by gregdudehunter

All you need now is a 257 weatherby mag to round out the Stable


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I believe our man @akaroa1 could add a few more to the list of quarter bores for you to acquire lol

Any pressure signs?
Seating your pill out as you are you should have have space available to feed it a touch more.

2209 is a good starting place. Alliant powders RL22/23 give a bit more velocity as a rule. But not worth the cost difference now in my opinion.
2213 is a good option


I shoot a .257Rai. 100s at 3300 fps, 25 inch tube. 2209. You should be getting similar.


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Originally Posted by Dicko

Any pressure signs?
Seating your pill out as you are you should have have space available to feed it a touch more.

2209 is a good starting place. Alliant powders RL22/23 give a bit more velocity as a rule. But not worth the cost difference now in my opinion.
2213 is a good option


I shoot a .257Rai. 100s at 3300 fps, 25 inch tube. 2209. You should be getting similar.


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Yes, that's what I'm thinking. It's not quite up to the pressure stated.

I'm going to load singles .3gr increments till I see some excess pressure signs and then back off a bit and find an accurate load.

I'll consider 2209 after that.

The swede I'll sneak a bit more in and call it good.


I never had these kinds of issue before getting a chronograph lol