7mm PRC - Advice on Custom Rifle Builders

• Initial Wobble: At 100 m, the bullet may still be oscillating around its center of gravity. This yaw can cause slightly larger relative dispersion at short ranges.
  
  
• Settling Down: As the bullet travels, its forward velocity decreases faster than its rotational speed (RPM). This increases its gyroscopic stability
  
  over distance, allowing it to "settle" or "go to sleep" by 200 m or 300 m.
• Consequence: A bullet that is "sleeping" at 200 m travels more efficiently and predictably than one still wobbling at 100 m.

provarmint said:

Applied Ballistics

** Ballistics Breakdown ** These are examples of groups fired on our 100-300 yard 'shoot-thru' target. Bullets pass thru the paper at 100 yards and continue on to 300 where you see a bigger version...

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AM_Lillycombe said:

Here I was trying to be nice. So basically either the tikka 7prc is sh1t or the YouTuber is sh1t

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AM_Lillycombe said:

Apparently this is a reality common phenomenon and nothing to do with gun weight.

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Edinburgh Rifles said:

Thats a Kroseg stock
also NZ

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MTheaded but happy said:

Ask the turnaround time !

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AM_Lillycombe said:

Well my PSE evolution for the 7prc is going to take 18weeks… so I’m having to get a base spec MDT in the meantime. I don’t think many of them are quick.

Looking at that stock from NZ I wish I’d gone for that it’s got a lovely traditional shape with modern materials too late now. I like the pse but the for-end is a bit bulbous although there is probably a reason for that.

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pommers said:

Re: lead time, I ordered a PSE evolution on 22/08/25 and it turned up 23/02/26.

Very nice stock mind.

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Dave_45 said:

I asked them for a Sako 75 stock 300wsm sm action

They are looking at the end of the year to start build

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75 said:

They're going inlet for Sako 75 now??? I asked loads of times and it was always a "no" so I sold mine. Wish I'd hung onto it!!

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AM_Lillycombe said:

Google ai says:

Bullet Stabilization ("Going to Sleep")
Bullets do not always leave the barrel perfectly stable. They often exit with a slight wobble or "yaw".

• Initial Wobble: At 100 m, the bullet may still be oscillating around its center of gravity. This yaw can cause slightly larger relative dispersion at short ranges.
  
  
• Settling Down: As the bullet travels, its forward velocity decreases faster than its rotational speed (RPM). This increases its gyroscopic stability
  
  over distance, allowing it to "settle" or "go to sleep" by 200 m or 300 m.
• Consequence: A bullet that is "sleeping" at 200 m travels more efficiently and predictably than one still wobbling at 100 m.

Click to expand...