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Rifles, Reloading, Optics, Equipment
Reloading
Replacement for rl-26 7mm rem mag
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<blockquote data-quote="7mmTikkaShooter" data-source="post: 1579440" data-attributes="member: 92915"><p>I've used RL 22, Retumbo, IMR 7977, and most recently IMR 8133 in a 7RM using the 175 Nosler ABLR. Very impressed with 8133. Velocities are similar to Retumbo but seems to shoot a lot cleaner. I was getting a lot of carbon fowling with the Retumbo. Been able to produce great groups with all of them but I think IMR 8133 or possibly the 7977 should be similar in burn rate and temp stability as RL 26. Someone else can chime in here and dial in on burn rate comps. Both IMR powders advertise the same copper fowling agents like in the RL 26. I haven't tested 7977 as extensively in my 7RM because it was a pound of powder my father had bought for me to load his 270, so I just dabbled with a few charges. Had a screamer of a load found for 8133 anyway so I didn't feel the need to fuss with it. Velocities in the 270 however, with 7977 is impressive. I've found them to be very temp stable but I don't have recorded data to support. After all that rambling, I suggest trying out either IMR 7977 or IMR 8133.</p></blockquote><p></p>
[QUOTE="7mmTikkaShooter, post: 1579440, member: 92915"] I've used RL 22, Retumbo, IMR 7977, and most recently IMR 8133 in a 7RM using the 175 Nosler ABLR. Very impressed with 8133. Velocities are similar to Retumbo but seems to shoot a lot cleaner. I was getting a lot of carbon fowling with the Retumbo. Been able to produce great groups with all of them but I think IMR 8133 or possibly the 7977 should be similar in burn rate and temp stability as RL 26. Someone else can chime in here and dial in on burn rate comps. Both IMR powders advertise the same copper fowling agents like in the RL 26. I haven't tested 7977 as extensively in my 7RM because it was a pound of powder my father had bought for me to load his 270, so I just dabbled with a few charges. Had a screamer of a load found for 8133 anyway so I didn't feel the need to fuss with it. Velocities in the 270 however, with 7977 is impressive. I've found them to be very temp stable but I don't have recorded data to support. After all that rambling, I suggest trying out either IMR 7977 or IMR 8133. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Replacement for rl-26 7mm rem mag
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