Re: .338 cartridge overall length and AI Mag
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DLM</div><div class="ubbcode-body">Do you mean the overall cartridge length is too long because the case length is longer with the Lapua and with the shorter case length of the Norma, a 300gn projo will fit in my AI magazine?
So, are you advising using a Norma mag case with the 300gn projo in the AIAW?
Is there a down side???'
Thanks,
Dave </div></div>
rsilvers post concerning the 338 Norma Mag is rhetorical.The 338 Norma Mag is a completely different caliber.Although physically shorter at the same coal the Norma has more capacity and is able to reach higher velocities with the 300gr. bullet. YOU CANNOT USE IT IN YOUR GUN.
The original design and use of the 338LM in the AIAW was to shoot the 250gr. bullet. Now that faster twist barrels are available for the AI the case length of 3.6" or so limits the case capacity to shoot the 300 grain bullets at higher velocities.Hence the new longer CIP length and the new AX series of 338LM rifles by Accuracy International.
You didn't state what twist barrel your AI came with. If its a 1/11" twist-you should be shooting 250gr. bullets anyway. Most shooting 300gr. 338 bullets have found that the 1/10 or even faster 1/9.5" twist stabilize the 300gr. bullet better.
Don't get sidetracked.He didn't even suggest using the Norma case. You have an AIAW and you are limited to magazine length and at that length you can get performance out of the 250gr.Scenar or 250SMK exceeding 1500 yards.
You got some studying to do......