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I have looked over my Lyman, and Hornady manual as well as he Hodgdon site but cannot find anything on 124gr RN with Longshot. Anyone use this combo, if so what is your recipe?
Indeed it is for a 9mm... I always forget to mention that...I did see that data on the hodgdon site but its the 124 hollow base do you think it would be good to run 5-10 at 4.5gr and a few more at 4.8? I was told by a local friend that the 124 HBRN TP and the 124 RN data would be totally different. should I just be concerned with the weight and profile of the bullet and not worry about the type of base the bullet has? Thanks for your help by the way!
Hollow based Berry's bullets are a little longer on the bearing surface so the base of the bullet will be seated a little deeper than a flat based bullet but the hollow base is supposed to make up for air space of the longer bearing surface.
This is where you can find the Hodgdon data for Berry's 124 HBRN-TP bullets
Indeed it is for a 9mm... I always forget to mention that...I did see that data on the hodgdon site but its the 124 hollow base do you think it would be good to run 5-10 at 4.5gr and a few more at 4.8? I was told by a local friend that the 124 HBRN TP and the 124 RN data would be totally different. should I just be concerned with the weight and profile of the bullet and not worry about the type of base the bullet has? Thanks for your help by the way!
This is why there is a load range instead on one number and why we start low and work up, because what we load is not exactly what they tested. Start at the start and work up until you get acceptable accuracy and the round feels right in your pistol. Everything will be fine...
Not that anyone above steered you in the wrong direction but you may want to drop Gamestalker a PM, he has extensive experience with Longshot and 9mm loads. If my memory serves, and not to speak for him, I think he leans more towards full tilt jacketed though.
I've been playing around with Longshot in my 9mms and for me 5.5gr seems to be the magic number. It's hot but with Longshot you have to load it on the hot side to get it to really burn right.
I'm using flat based plated bullets, not the hollowbased in 124gr but only because I'm out of the hollowbased bullets. I use the same data for each and even though Hodgdon's says 5.7gr at OAL of 1.150 is max, I use 5.5gr as max as a extra safety margin because it is a rather hot load for a 9mm. It is a pleasure to shoot because of the lack of a really hard snap. It's seems easier to handle than say maximum load of a faster burning powder like Titegroup. It's more push than snap. I've this load to be very accurate, not my most accurate but close.
If I were using an OAL of less than 1.150 I would reduce the load to 5.3-5.4gr for the 124gr HBRN bullet until I knew there were no pressure signs like throwing the ejected cases more then 5' out of the pistol.
Longshot does work really well in 9mm if you like hotter loads.
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