Been thinking of customizing a m70 300 WinMag...??

[michael sr.]

Your thoughts:

I have an extra M70, Stainlss, CRF, 26" barrel 300 WinMag.

---Barrel to 20"

---Handloads using 200 grain round nose only ...if I can find them at min velocity.

---using screw-on Can.

Dedicated to the 200 grain bullet only.

 

[pawprint]

Re: Been thinking of customizing a m70 300 WinMag...??

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: michael sr.</div><div class="ubbcode-body">Your thoughts:

I have an extra M70, Stainlss, CRF, 26" barrel 300 WinMag.

---Barrel to 20"

---Handloads using 200 grain round nose only ...if I can find them at min velocity.

---using screw-on Can.

Dedicated to the 200 grain bullet only.
</div></div>
May as well go with a shorter tube, as you're only wanting subsonic rounds-that is what I understand by min velocity.
You're going to have a lot of empty case, but I believe if you use Puff-Lon and a very fast rifle powder-slow pistol powder (you get the idea) you can get there. I believe you'll need the Puff-Lon to keep everything in "place", because you're dealing with a big case, but needing a small fast charge. Other than that-Good Shooting.

 

[Fuzzy Bunny]

Re: Been thinking of customizing a m70 300 WinMag...??

I realize you have a long action but personally I would not build a 300wm for minimum velocity. There are other 30 caliber cartridges that would fill the bill better.

 

[Jerry m]

Re: Been thinking of customizing a m70 300 WinMag...??

Be careful how how you try to obtain you minimum velocity. P. O. Ackley has a chapter in his book about people blowing up actions using reduced powder charges with slow burning powders.

Good luck

Jerry