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Long Range Hunting & Shooting
APS 338 Raptor, R&D early results
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<blockquote data-quote="Fiftydriver" data-source="post: 846747" data-attributes="member: 10"><p>Load density at 124.0 gr with the 300 gr berger and this 4.320" OAL is right around 95%. Perfectly acceptable and likely a very good load. I can not say this RL50 load is a BETTER load but it does have a bit higher load density and it looks to be around 20-30 fps more velocity with same or slightly less pressure.</p><p> </p><p>The main factor in using the RL50 load at this time is I have 16 lbs of RL50 and only about 1/2 lb left of RL33 after testing it in the 338 Raptor and doing a quick velocity test in one of my customers 338 AX rifles (will post on those results on a different topic post). I want to use the remaining RL33 to see what it will do in my 7mm Allen Magnum and 300 Allen Xpress.</p><p> </p><p>Currently I am using Retumbo in my 7mm AM with 160, 175 and 180 gr bullet weights. It works very well but the slightly slower burning RL33 may give us a decent boost in that one as well. With the 230 gr Bergers and 240 gr SMK in my 300 AX, I think RL33 maybe even better in that chambering then the 338 AX which it was very good in.</p><p> </p><p>I do not think RL is to dense for the 338 Raptor, a bit on the fast side for burn rate as you could pressure out pretty easily if you were not paying attention but I think it would be quite easy to make a very good, high performance load in the 3125-3150 fps range with RL33 in the Raptor. Same pressures with RL50 will just get you into that 3150-3175 fps range and again, Ihave a lot of it on hand.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 846747, member: 10"] Load density at 124.0 gr with the 300 gr berger and this 4.320" OAL is right around 95%. Perfectly acceptable and likely a very good load. I can not say this RL50 load is a BETTER load but it does have a bit higher load density and it looks to be around 20-30 fps more velocity with same or slightly less pressure. The main factor in using the RL50 load at this time is I have 16 lbs of RL50 and only about 1/2 lb left of RL33 after testing it in the 338 Raptor and doing a quick velocity test in one of my customers 338 AX rifles (will post on those results on a different topic post). I want to use the remaining RL33 to see what it will do in my 7mm Allen Magnum and 300 Allen Xpress. Currently I am using Retumbo in my 7mm AM with 160, 175 and 180 gr bullet weights. It works very well but the slightly slower burning RL33 may give us a decent boost in that one as well. With the 230 gr Bergers and 240 gr SMK in my 300 AX, I think RL33 maybe even better in that chambering then the 338 AX which it was very good in. I do not think RL is to dense for the 338 Raptor, a bit on the fast side for burn rate as you could pressure out pretty easily if you were not paying attention but I think it would be quite easy to make a very good, high performance load in the 3125-3150 fps range with RL33 in the Raptor. Same pressures with RL50 will just get you into that 3150-3175 fps range and again, Ihave a lot of it on hand. [/QUOTE]
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APS 338 Raptor, R&D early results
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