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Hunting
Long Range Hunting & Shooting
8 twist 22” 300 Win Mag with 215 Berger Hybrids
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<blockquote data-quote="wildcat455" data-source="post: 1522409" data-attributes="member: 102653"><p>On as short a barrel as the OP is talking, I'm pretty sure you'd be pushing Unburned powder out the barrel with anything slower than H4831. Matter of fact, you can push unburned H4831 out a 22" barrel in a 300 win mag. Stretch out a white bedsheet on the ground in front of your barrel when you top out on velocity and you'll see it. </p><p>With the case capacity of the 300 Win Mag, my choice for a short barrel was and still would be H4831SC. I Used to run that in a 22" barreled Remington 721 300 Win Mag. My Dad bought that gun as a 30-06 and later rechambered it for 300 win mag. He passed it to me, and I passed it on a while back. </p><p></p><p>Just recently Ran a bunch of 200 gr bullets down a 22" '06 barrel using RL26. Topped out at 64.5 gr of powder, 2750 FPS. After that, just spitting unburned powder out the tube. No more velocity to be had. Ended up running them at 64 gr. 2700 FPS. </p><p></p><p>My point is You'd have a chance at some velocity by generating a little more pressure a little quicker than the slower powders. The slower powders generate better velocity in a longer barrel by continuing to burn down that barrel, holding the pressure on the bullet longer. </p><p>Higher velocity with less peak pressure, if you have the barrel length to take advantage of it. </p><p>Not saying I wouldn't try RL 26 in that short of a barrel. But for sure, the H1000 and slower would be out.</p></blockquote><p></p>
[QUOTE="wildcat455, post: 1522409, member: 102653"] On as short a barrel as the OP is talking, I’m pretty sure you’d be pushing Unburned powder out the barrel with anything slower than H4831. Matter of fact, you can push unburned H4831 out a 22” barrel in a 300 win mag. Stretch out a white bedsheet on the ground in front of your barrel when you top out on velocity and you’ll see it. With the case capacity of the 300 Win Mag, my choice for a short barrel was and still would be H4831SC. I Used to run that in a 22” barreled Remington 721 300 Win Mag. My Dad bought that gun as a 30-06 and later rechambered it for 300 win mag. He passed it to me, and I passed it on a while back. Just recently Ran a bunch of 200 gr bullets down a 22” ‘06 barrel using RL26. Topped out at 64.5 gr of powder, 2750 FPS. After that, just spitting unburned powder out the tube. No more velocity to be had. Ended up running them at 64 gr. 2700 FPS. My point is You’d have a chance at some velocity by generating a little more pressure a little quicker than the slower powders. The slower powders generate better velocity in a longer barrel by continuing to burn down that barrel, holding the pressure on the bullet longer. Higher velocity with less peak pressure, if you have the barrel length to take advantage of it. Not saying I wouldn’t try RL 26 in that short of a barrel. But for sure, the H1000 and slower would be out. [/QUOTE]
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Long Range Hunting & Shooting
8 twist 22” 300 Win Mag with 215 Berger Hybrids
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