RL 15 in Grendel
- Thread starter jambau
- Start date
Re: RL 15 in Grendel
NO.
RL-15/RL-17 is terrible in the Grendel. Trust me. I loaded up about every powder to test in the Grendel and ball/Spherical powders work the best. The lighter bullets sometimes like some "stick" powder....not RL-15 or RL-17.
Whoever told you try these powders in the Grendel must not have much knowledge in shooting the 6.5 Grendel round.
<span style="text-decoration: underline">Stick to these powders for the Grendel:</span>
<span style="font-weight: bold">TAC
X-Term.
AA2520
BL-C(2)
Win748
IMR 8208 XBR
LVR
N-530, N-130, N-133
H-335
CFE 223 (needs testing yet)
Benchmark (for lighter bullets)</span>
NO.
RL-15/RL-17 is terrible in the Grendel. Trust me. I loaded up about every powder to test in the Grendel and ball/Spherical powders work the best. The lighter bullets sometimes like some "stick" powder....not RL-15 or RL-17.
Whoever told you try these powders in the Grendel must not have much knowledge in shooting the 6.5 Grendel round.
<span style="text-decoration: underline">Stick to these powders for the Grendel:</span>
<span style="font-weight: bold">TAC
X-Term.
AA2520
BL-C(2)
Win748
IMR 8208 XBR
LVR
N-530, N-130, N-133
H-335
CFE 223 (needs testing yet)
Benchmark (for lighter bullets)</span>
Re: RL 15 in Grendel
I <span style="text-decoration: underline">only</span> use TAC and Win748 in mine.
I <span style="text-decoration: underline">only</span> use TAC and Win748 in mine.
Re: RL 15 in Grendel
I use 30.5 gr of AA2520 in my Grendel with 120 SMK's and Noslers. It works great. But, i've heard you have to be careful if you live in a area where the temp get real high.
I use 30.5 gr of AA2520 in my Grendel with 120 SMK's and Noslers. It works great. But, i've heard you have to be careful if you live in a area where the temp get real high.
Re: RL 15 in Grendel
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Muttt</div><div class="ubbcode-body">I use 30.5 gr of AA2520 in my Grendel with 120 SMK's and Noslers. It works great. But, i've heard you have to be careful if you live in a area where the temp get real high. </div></div>
Interesting comment on temps and AA2520. I was considering it for a long range 223 load but it does get awfully hot here in the south.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Muttt</div><div class="ubbcode-body">I use 30.5 gr of AA2520 in my Grendel with 120 SMK's and Noslers. It works great. But, i've heard you have to be careful if you live in a area where the temp get real high. </div></div>
Interesting comment on temps and AA2520. I was considering it for a long range 223 load but it does get awfully hot here in the south.
Re: RL 15 in Grendel
Tikka09,
This is pretty late posting to this but I'll tell what I can. RE-15 and RE-17 are too slow to run through the Grendel. That is if you have an AR.
Unfortunately, loading for an AR you have a gas port. The shorter the port the faster the powder you need to use. Slow powders will cause high pressures at the port. The heavier the bullet the slower the powder you can use. Again, not too slow for the situation though. Many times I've had to bump UP with the powder to keep cases from getting trashed. So, it's not a linear thing where you just start low and work up. If it was a bolt gun that would be the case.
The best way I can explain it, is to draw a graph with six equal demarcation lines up on the left and up to 24 equal lines at the bottom going from left to right. The six lines up is pressure (x 10k). The lines L-R on the bottom denote length of barrel. Measure how long your gas port is. Note that on the graph. Straight up from the gas port make a mark at 1.7 (17,000 psi) You want to hit that mark if you can when you do a gas profile.
I don't have graphics so I'll just have to describe it.
A gas profile will start at zero/zero and spike sharply upward to just under the 5 within the 0-1" column. It should then have a slightly rounded top reaching the "5" (or just over it) through the 2" mark. Then it should decrease straight-line down to about the 1.7 mark we made earlier. Too high above that you get too much gas back in the system. It slams the bolt back and causes unnecessary damage and crap coming back into the action. The pressure tries to unlock the bolt when there is still too much pressure in the barrel. This causes the 'swipe' you see on cases, and extractor damage. But doesn't seem to make sense because because the primers aren't flattened.
Too low pressure, and the action won't cycle completely. Once your profile gets to the port it will make an "S" curve drop to about 1.1 then continue at a steeper straight-line decline to the end of the barrel where it completely drops off. You don't get near as much push with a long barreled AR as you do a bolt gun.
One of the difficulties in loading bigger cases in the AR is the volume output. A Grendel has 20% more volume. A BR has 40% more. That's a lot of volume to get handled before pressure hits the port.
Tikka09,
This is pretty late posting to this but I'll tell what I can. RE-15 and RE-17 are too slow to run through the Grendel. That is if you have an AR.
Unfortunately, loading for an AR you have a gas port. The shorter the port the faster the powder you need to use. Slow powders will cause high pressures at the port. The heavier the bullet the slower the powder you can use. Again, not too slow for the situation though. Many times I've had to bump UP with the powder to keep cases from getting trashed. So, it's not a linear thing where you just start low and work up. If it was a bolt gun that would be the case.
The best way I can explain it, is to draw a graph with six equal demarcation lines up on the left and up to 24 equal lines at the bottom going from left to right. The six lines up is pressure (x 10k). The lines L-R on the bottom denote length of barrel. Measure how long your gas port is. Note that on the graph. Straight up from the gas port make a mark at 1.7 (17,000 psi) You want to hit that mark if you can when you do a gas profile.
I don't have graphics so I'll just have to describe it.
A gas profile will start at zero/zero and spike sharply upward to just under the 5 within the 0-1" column. It should then have a slightly rounded top reaching the "5" (or just over it) through the 2" mark. Then it should decrease straight-line down to about the 1.7 mark we made earlier. Too high above that you get too much gas back in the system. It slams the bolt back and causes unnecessary damage and crap coming back into the action. The pressure tries to unlock the bolt when there is still too much pressure in the barrel. This causes the 'swipe' you see on cases, and extractor damage. But doesn't seem to make sense because because the primers aren't flattened.
Too low pressure, and the action won't cycle completely. Once your profile gets to the port it will make an "S" curve drop to about 1.1 then continue at a steeper straight-line decline to the end of the barrel where it completely drops off. You don't get near as much push with a long barreled AR as you do a bolt gun.
One of the difficulties in loading bigger cases in the AR is the volume output. A Grendel has 20% more volume. A BR has 40% more. That's a lot of volume to get handled before pressure hits the port.
Re: RL 15 in Grendel
There's also some good reload info for Grendels over on the forum.
www.65grendel.com/forum
There's also some good reload info for Grendels over on the forum.
www.65grendel.com/forum
Re: RL 15 in Grendel
I have tested Reloder 15 in my AA Grendel Hunter, and using 123gr Scenars, could only get them to go 2450fps. Accuracy was outstanding, but I wanted 2550 fps, and deformed some Scenars trying to cram more RL15 under the bullet. If that was the only powder I had, I would use it, and be confidently MOA at least, out to 800yds. I disagree that it is a terrible powder for the Grendel. I settled on 30.4 gr. AA2520 and am getting 2550fps and sub moa performance. I really want to test the 2000MR and AR Comp powders in my Grendel.
I have tested Reloder 15 in my AA Grendel Hunter, and using 123gr Scenars, could only get them to go 2450fps. Accuracy was outstanding, but I wanted 2550 fps, and deformed some Scenars trying to cram more RL15 under the bullet. If that was the only powder I had, I would use it, and be confidently MOA at least, out to 800yds. I disagree that it is a terrible powder for the Grendel. I settled on 30.4 gr. AA2520 and am getting 2550fps and sub moa performance. I really want to test the 2000MR and AR Comp powders in my Grendel.
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