I cover a variety of loads in this article and mention a few products. This article covers my experience using different types. And, this time around I’ll have a better handle on suitable loads. 243 Winchester is the logical choice, but the mild-mannered. Limits imposed by a recent surgery restrict my firearms to those less likely to unravel body parts. A tried and true. Previously coveted “doe permits” were awarded to all who applied and many lucky applicants, including me, even scored “bonus tags,” good for extra antlerless deer.īut, on a personal note, a technical difficulty involves recoil. Our normal allotment is one deer per year, but a succession of milder winters and bountiful acorn crops has dramatically increased the herd. For those of us who hunt it’s not only a glorious time, but also a harbinger of deer season. Expectations are high in my area. Northern New England is ablaze with brilliant foliage and morning frost coats our fields. 300 upper receiver outright solely for the purpose of hunting. Many hunters are making a 5.56/.300 conversion to their existing AR configurations or buying a. 300 Blackout is becoming an increasingly popular hunting round. A light polish on the feed ramps resolved this issue.30-caliber Punch for Your AR-15 with the Option of Quiet Shooting The bottom center lug was actually creating a curled shaving and was stopping the bullet. Turns out the edges on the feed ramps and lugs were so sharp, they were acting like a chisel on the nose of the soft copper bullet. I've had a few situations where a round would fail to feed. This was a very accurate load for me but had to drop back to 10.5 grains to stay subsonic (so far, its still spring). 10.8 grains of powder at 2.035" COAL was giving me 1060 to 1070 fps with temps in the 30s but became supersonic when the temps warmed up into the 50F degrees. However, AA1640 is either a bit temperature sensitive or velocities are getting faster as the barrel breaks-in. This is why I'm using P-Mags.ĪA1640 burns pretty clean with a subsonic load and I'm not getting the residue build up like I was suppressed in the 6.8. I ran into situation where the rim of the case would tilt down below the lips and the bolt wouldn't stripe out the round.
Its been pronounced in the metal mags that are wider internally than the plastic P-Mags. It appears that the case body on the 300 BO is so short that I was getting round to tilt in the magazine. JP223, I did run into an issue with magazines. I have had to work through a couple of issues with the 300 BO. To look at it another way, with 1.25"+ expansion, the 3-shot group at 50 yards has all 3 touching. I'm satisfied with the accuracy based on the engagement range. It is going to take some practice to shoot beyond 125 yards if I even try. There is not much velocity loss with a subsonic bullet but the trajectory drop has to be managed. I expect my engagements to be 25 to 125 yards so have zero'd at 75 yards. Next time out I will try 2.065" and 2.035" COALs to see if the groups tighten up and I will start shooting at 100 yards. I've been using 2.050" COAL with CCI 400 primers in once-fired S&B brass. I've basically settled on 10.8 grains of AA1680. I've shot one group at 100 yards and the groups didn't seem much larger but I need to shoot more. However, I've been mostly testing terminal performance and trying to ensure I stay below 1060 fps so I stay subsonic on cold days. I got the same accuracy with 220 AccuBond LRs. I'm typically getting 1" 3-shot groups at 50 yards. Jofus, this is my first foray into subsonic loads and I'm still learning.
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