AWESOME! Maybe better said - IMPRESSIVE!!!
What an interesting, exciting and encouraging day at the range testing my Custom 300WBY mag and the 240gr Woodleigh bullet. I also tested the same bullet in my Kimber 30-06. Got all set up, targets arranged, rifle ready, my clock set up so I could see how long between shots. I started going through my mind the load process the night before knowing I had weighed each bullet, prepared each piece of brass and seated my bullet just off the rifling. Yes, I was ready! No, not really! When I pulled myself up to the bench and put the 300WBY to my shoulder, knowing there was a 240gr bullet fixing to exit the end of my barrel, I said to myself, “Mike, do you really, really want to pull this tigger?” Before I answered myself the finely tuned trigger released a freight train out the other end of my barrel. It hit the target and slammed the wet earth bank like a pile driver and through dirt everywhere. It started raining all of a sudden as the blast from the 300 sent a shock wave that brought all the condensation from the metal roof above me down on my rifle and every thing was wet. I decided right then and there, what I was going to name my new rifle. That’s right! “THOR’S HAMMER!”
Yet, to my surprise and delight was the fact that the felt recoil was no greater than a 180gr Partiton from my Ruger# 1 in 300WBY. I said, “hey, now that is just to cool!” You might ask me if a Bansner muzzle brake works and if it is wonderful to have one, and my answer after today is on some rifles, “absolutely!” In fact when I shot this same bullet out of my 30-06 Kimber 8400, it was like shooting a 200gr out of my other two 06’s. So Kimber’s stock design really works as advertised. I shot all morning switching between rifles so as to allow them time to cool properly between groups even thought I waited for three minutes between each individual shot. I needed to make sure I did not shoot the 300WBY hot. Not only to save barrel life but I was also breaking it in the 26" #2 shilen.
The 30-06 I was able to get 2401fps on average but only 1 ¾ inch group being the best. I was only using 4350 and there were no pressure signs with my loads. I am not at max yet but very close, just taking my time and working up. Will try a few other powders soon.
Now the 300WBY was quite impressive. With IMR7828 I reach 2708fps and shot a 3/8 inch group. Also with Norma MRP I reached a smoking 2761 shooting a 1 ½ inch group but pulled the third round on this group so will have to shoot it again. Neither group was at max and I will work up to that slowly if at all. Now RL-25 disappointed me in accuracy but that did not surprise me. Will be trying some other powders soon. I cannot impress upon you all just how awesome and powerful and at the same time how easy this rifle and round was to shoot much less reload. It will be another three weeks because of work before I can resume my testing but this test today is really encouraging. WOW what a rifle (Thor’s Hammer) and what a load (the spirit of Thor).