Author Topic: Picked up a new 25-06 Ultra today.  (Read 512 times)

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Offline Fred M

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Picked up a new 25-06 Ultra today.
« on: May 10, 2004, 04:02:19 PM »
Never thought one will show up. Matter of fact two showed up and one was sold before I got to the store.

Cursory inspection and cleaning the barrel and chamber was the first thing I did. After I slug the barrel, I will decide what treatment the barrel needs.

The chamber measures .4715 at the .200 datum. The chamber shoulder is
.444, pretty loose? The chamber neck is .291 also quite large. The free bore diameter is .2582. The Hornady bullet at .2575" is perhaps the better diameter for the large throat. The barnes measures.257" even.

I have some new RWS 30-06  cases which are quite a bit bigger in body size. Necking them down to 25 will considerable thicken the neck walls.
reducing the radial neck clearance for better concentricity. This should make it possible to obtain a 0.0155" neck walls for an ideal 0.0015" radial clearance.

It can be seen that the camber dimensions are quit liberal and will not produce guild edge accuracy with most standard factory loads. But with careful hand loading and slow burning powders at no more than 49 kcup this rifle should shoot just fine.

The Hawkeye bore scope showed a pretty smooth bore not bad for a inexpensive rifle.

New brass chambers fine and ejects ok. The barrel lock has only very limited engagement and needs stoning. The ejector also prevents full forward movement of the barrel lock. The trigger has creep and need some work.

Two kinds of bullets can be loaded to the lands  OAL with a 100gr Hornady Interlock will measure 3.311 and seat into 2.491 case .161 which is enough for a single shot.

OAL with the Barnes Tipple shock 100gr BT is 3.351 bullet in neck is .249".
The boat tail is .120", so the bullet has .129 bearing more than enough.
Loading the bullet to touch the lands greatly improves accuracy in most rifles.  So the free bore is not as bad as I thought.

The laminated stock looks great but the butt is a bit obese  :) .

Wont be shooting this rifle for a while until I have fixed all the wee hic ups.
We wait to be surprised? :lol:
Fred M.
From Alberta Canada.

Offline jeff223

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Picked up a new 25-06 Ultra today.
« Reply #1 on: May 10, 2004, 04:20:19 PM »
good luck with the new shooten iron.let us know how it shoots