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Thread: Need some help if anyone with Quickloads is willing

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  1. #13
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    Nosler makes two different 160 Partitions in .284 - the Partition SP #16327 and Partition Gold # 52150. You need to specify which one.
    To make any sense out of a QuickLOAD run you should also include barrel length and twist of the barrel.
    It would also be good to state the case trim length.

    Both IMR4350 and RL17 are temperature sensitive so you also should state the temperature range you are expecting as well.
    IMR4350 over the range from 0 to 125 deg. F. has a velocity change on the order of 155 fps for a equivalent powder charge.

    QuickLOAD provides 17 listings for each printout in charge increments that you prefer such as 0.1 or 0.2 grains, etc.
    It includes velocity, pressure,

    If you don't provide all the data, I don't think the QuickLOAD results would be very helpful.
    If you provide the right information, you'll get some pretty good info for planning your loads.
    With what you provided, you won't.

    The following loads are near PMax so they are not recommended for a starting load.
    Be careful with loads near PMax.
    Reducing Seating depth from 2.990 to 2.978 will put this load over PMax at 70 deg. F.
    Increasing the trim length from 2.160 to 2.171 will put these loads over PMax at 70 deg. F.
    If you don't normally keep track of your measurements, you'd be wise to drop the charges by 10% and then work up until you see pressure signs.


    They are for 160 grain Nosler Partition SP #16327 bullets. The Partition Gold # 52150 are very similar in results.
    With the limited data you provided I assumed a 24 inch barrel, and a trim length of 2.160 at 70 deg. F. A longer trim length increases the pressure.
    The max load with IMR4350 would be 53.7 grains with a pressure of 63,745 psi and a muzzle velocity of 2,868 fps and a bullet exit time of 1.165 msec.
    At 40 deg. F, with the same charge, the pressure drops to 60,670 psi with a mv of 2,831 fps and a bullet exit time of 1.190 msec.

    With the same assumptions, using RL 17,
    The max load with Reloader 17 would be also be 53.8 grains with a pressure of 63,437 and a velocity of 2,947 fps and an bullet exit time of 1.160 msec.
    At 40 deg. F., with the same charge, the pressure drops to 59,672 psi with a mv of 2913 and a bullet exit time of 1.187 msec.
    Last edited by CFJunkie; 02-16-2019 at 01:52 PM. Reason: Added seating depth and trim length range to PMax

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