Stupid question

[Striper Sniper]

is the 527 carbine chrome lined?

[JJH]

Negative

[Striper Sniper]

Bummer. Are any of the 527's?

[JJH]

Negative

[jameslovesjammie]

No question is ever a stupid question.  Just out of curiosity, why do you need a chrome lined bore on a bolt gun?

[Striper Sniper]

Just thought they last longer?

[mauserand9mm]

A chrome bore is very easy to clean - they don't seem to foul with copper either. I've experienced chromed bores in M14s and an SKS. I only ever needed a pull-through to clean the M14 (still with solvent of course). I don't recall the ammo I used in the SKS (many years ago now) but it was ex-mil and left lots of powder fouling - I used a brush on that one, but still no copper fouling.

I think the Browning and Winchester in the Short Magnums have chromed bores mainly to slow down the rate of throat erosion.

Norinco made a chrome bored bolt gun in 7.62x39 but the chambers are cut badly and you end up with badly distorted cases - likely not good for case life if you reload.

Chrome lining is an excellent idea but the cost to do it properly would result in a firearm that is uncompetitive in price in the market these days. I don't know how much longer the barrel would last, but I don't think most hunters would ever realise the cost benefit. Bench rest shooters seem to do well without the chrome lining and they change their barrels more often than most (they fire more shots of course).

[jameslovesjammie]

I think the Browning and Winchester in the Short Magnums have chromed bores mainly to slow down the rate of throat erosion.

Super Short Magnums.  Short Mags are all standard bore.  The Super Short Magnums were approaching 4,300 fps (40 grain) .223 WSSM, and 4,000 fps (60 grain) .243 WSSM, hence the accelerated throat erosion.

Chrome lined may be better for longevity, but it isn't necessarily more accurate.  Since it is a plating, it can be thicker in some areas than others, making for less conformity inside the barrel.

[mauserand9mm]

Yes, the WSSMs have the chrome.

It must be a difficult process to get right, considering the tolerances required and the sharp edges of the rifling and avoiding uneveness, but still, they can do it.