300gr hornady xtp bullets

[roger460xvr]

My question is which cannalure do you use on the 300gr xtp bullet? Im loading for my 44magnum do use the one at the top near the tip or at the bottom?  I'll be using h-110 and tite-group for the powder usage..

[Lone Star]

It depends on the firearm you will be firing the ammunition in, and on the published data.  Many .44 revolvers will not handle the long-seated bullets and few rifles will, so with them you will be limited to using the front cannelure.  There is a potentially large performance and pressure difference depending on the cannelure you use, so make sure the data you use is for the short-seated bullets, or vice versa.  Check the loa listed for the specific load data to be sure which cannelure that data uses.



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[roger460xvr]

The revolver I'll be loading for will be my taurus 44magnum Raging Bull,      ....ROGER460xvr

[blpenn66502]

Hornady, 7th edition, shows COL of 1.600 for all their 44 Mag data with the 300 XTP which means the top cannelure.  Using the lower one will add 0.150 to the OAL and exceed the max COL of 1.610 considerably.

[Grumulkin]

If the cartridges will chamber easily and if they don't extend beyond the cylinder, use the lower cannelure.  This will give you more powder capacity and potentially more velocity whilst maintaining acceptable pressures.