X-Treme X-DEF Bullets load info

[southerneagle1]

I recently purchased 100 each of X-Treme X-Def
Bullets. 9mm 115 gr and 9mm 147 gr. Was told by X-Treme to use Speer GDHP data. I am using CFE Pistol powder. Speer has a Start load of 4.1 and a max load of 4.6. COAL 1.13. MY issue is I have to seat the bullets at 1.10. Speers data is not showing the pressures so Im not certain how close to max pressure the max load is. Is there an easy formula to adjust for the difference in seating depth? Recommendations Please. By the way I am fairly new to reloading. Thanks.

 

[bullseye308]

There is no easy formula, that would be too easy. What I do once I have determined the OAL for my round is start at the bottom of the load data and slowly work up until I find the accuracy I'm looking for without reaching the max loading. If that doesnt work out I'll switch powders and try again. If you have access to a chronograph that would be beneficial as velocity can be a good indicator of when you are reaching the upper limits of a load before the brass gives any indications.

 

[Walkalong]

Seated deeper you'll have to stop shy of max, how much is an experience thing, there is no formula.

Are they showing 1.130 with both of those weights of Gold Dot bullets? Seems long for HP's.

Welcome to THR

 

[southerneagle1]

There is no easy formula, that would be too easy. What I do once I have determined the OAL for my round is start at the bottom of the load data and slowly work up until I find the accuracy I'm looking for without reaching the max loading. If that doesnt work out I'll switch powders and try again. If you have access to a chronograph that would be beneficial as velocity can be a good indicator of when you are reaching the upper limits of a load before the brass gives any indications.

Thanks for the info, Starting low and working up was my plan, although there us only a difference of .03, I would have felt better if Speer would have listed the pressures for the start and Max load. Thanks

 

[southerneagle1]

There is no easy formula, that would be too easy. What I do once I have determined the OAL for my round is start at the bottom of the load data and slowly work up until I find the accuracy I'm looking for without reaching the max loading. If that doesnt work out I'll switch powders and try again. If you have access to a chronograph that would be beneficial as velocity can be a good indicator of when you are reaching the upper limits of a load before the brass gives any indications.

As for a Chronograph, I haven't gotten one yet but will as soon as I can, I have already figured having one is a must.

 

[Walkalong]

there us only a difference of .03,

.030 is a lot in 9MM. From the Speer # 11 manual.

 

[Walkalong]

As for a Chronograph, I haven't gotten one yet but will as soon as I can, I have already figured having one is a must.

You can get by without one, but they are nice to play with, and very handy sometimes. At around $100, no reason not to have one, just don't chase numbers too much.

Judge recoil and ejection to help tell you if you are OK.

 

[fxvr5]

Thanks for the info, Starting low and working up was my plan, although there us only a difference of .03, I would have felt better if Speer would have listed the pressures for the start and Max load. Thanks

From what I've heard, their max loads are just shy of max pressure. Load past that and you'll be over max pressure.

See post #4, by Guy Neill
https://forums.brianenos.com/topic/41041-44-magnum-they-cant-all-be-right/