Re: Twist Rate for 300gr SMK\'s in 338/300 RUM?
Just curious if you have any documented cases of a Rem 700 based 338 Lapua coming apart with the use of proper 338 Lapua load levels?
Most of the modern receivers I am aware of are proof tested at twice their working chamber pressures so we are dealing with pressures up to or over 100,000 psi.
Now I can tell you that you will pierce a primer or loosen a primer pocket well before you get anywhere near this level of pressure. In fact more cases will start to loosen their primer pockets in the 65,000 lb range to some degree depending on their chamber design and fit.
I will also say that if you are loosening the primer pockets on a 338 Lapua case no matter if its as the standard 338 Lapua or any wildcat based on that case, you are pushing the pressure far to high and need to dramatically reevaluate your loading practices.
One aspect of the Savage barrel is that it has a relatively small diameter Barrel shank diameter over the shoulder area of the chamber, Over 1/4" smaller in diameter then the Rem.
Also keep in mind that there was a Savage rifle chambered for the 7.82 Patriot. This Lazzeroni short magnum has a lapua case head diameter.
I do not advocate using the Savage with the Lapua class case but I do the Rem 700 when used properly in properly fitted rifles.
There have been thousands of Rem 700s built and chambered for the Lazzeroni short actions and long actions which all use nearly the same case as the Lapua only in a slightly improved design.
There have also been alot of Rem XP-100 handguns chambered for the Lazzeroni short action magnums and used to full potential with no problems at all.
Ever measure the barrel shank diameter and receiver diameter of a Sako TRG-S? I suspect the barrel shank is less then a Rem 700 and the receiver no larger.
Same with the Wby MkV receiver. Same barrel shank diameter and receiver diameter.
Again, a factory Rem 700 receiver, certainly not, but a properly squared receiver with 100% lug contact and a precise fitted barrel and min spec chamber design with responsible load levels, you bet.
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