300gr XTP mag

[45Frank]

Good day
I've been reloading whatever I can find for a few weeks now. Working on my 45colt loads now.
Well I found a box of 300gr XTP mag and am finding data all over the place. Not much specific to the 300g XTP, I will use these for bear most likely so stout is good although I don't want to kill myself either.
I have seen ranges from 6.5 to 9g for Unique and 12.5 to 24 for 2400 and as little as 5g of Bullseye.
I have Unique, 2400, Blue Dot, Bullseye, H380, 700X and a few others off the top of my head.

 

[eldon519]

What are you shooting it out of? Are you looking at standard pressure or +P?

 

[45Frank]

Ruger NM Blackhawk with a 7 1/2" barrel. Since it will be carry when bear hunting stout is OK.

 

[buck460XVR]

The 300 gr XTP-Mag is made for .454 and above pressures and velocities. I use them in my .460. They have a thicker jacket than the standard 300 gr .45 caliber XTPs and may not expand/terminally perform as well at .45Colt velocities as the standard XTPs.

 

[45Frank]

The 300 gr XTP-Mag is made for .454 and above pressures and velocities. I use them in my .460. They have a thicker jacket than the standard 300 gr .45 caliber XTPs and may not expand/terminally perform as well at .45Colt velocities as the standard XTPs.

Didn't know that they were for .454 only I hadn't seen this anyplace.
Tried to seat a few this morning and if you seat them to the max 1.600 they will bind the brass when crimped. If you crimp to the cannelure they are longer then the 1.600.

 

[buck460XVR]

Tried to seat a few this morning and if you seat them to the max 1.600 they will bind the brass when crimped. If you crimp to the cannelure they are longer then the 1.600.

Could be why you don't find much info on them for .45Colt. This is true with anything with reloading. If you can't find published recipes for a specific powder/bullet/caliber, generally there's a good reason. If they are far and few there is a reason. Of course you can always come to the internet and find someone who has used it and will recommend you do too........

 

[Patocazador]

20 grains of 2400 is stout enough for me. I have gone as high as 22 gr. but accuracy suffered.
I usually shoot Hornady 250 gr. XTPs in it for hogs with 20 gr. of 2400.

Here's a 150 lb. boar shot with it at 50 yds.

 

[45Frank]

Could be why you don't find much info on them for .45Colt. This is true with anything with reloading. If you can't find published recipes for a specific powder/bullet/caliber, generally there's a good reason. If they are far and few there is a reason. Of course you can always come to the internet and find someone who has used it and will recommend you do too........

Which is why I research things probably to much. Then I verify is in writing so to speak with powder or company data! I have found XTP but nothing specific to XTP Mag.
Thank you for your time and info.

 

[Rule3]

Hornady manual # 8 has data for the 300 gr XTP MAG under 45 Colt Ruger and TC loads.

It is also used in the 454 and the SW 460 Mag

You want slow mag powders like 2400 and H100 not Unique or BE.

2400 powder is 16.5gr up to 18.0 gr

RUGER ONLY LOADS or a SW 460 MAG

 

[45Frank]

Hornady manual # 8 has data for the 300 gr XTP MAG under 45 Colt Ruger and TC loads.

It is also used in the 454 and the SW 460 Mag

You want slow mag powders like 2400 and H100 not Unique or BE.

2400 powder is 16.5gr up to 18.0 gr

RUGER ONLY LOADS or a SW 460 MAG

Not at the reloading room right now but what do they say about OAL. If I remember the shortest I could get the bullet seated into the cannelure was 1.655 or so without deforming the brass. I tried crimping above the cannelure but the thickness of the bullet wouldn't allow it.

 

[buck460XVR]

Not at the reloading room right now but what do they say about OAL. If I remember the shortest I could get the bullet seated into the cannelure was 1.655 or so without deforming the brass. I tried crimping above the cannelure but the thickness of the bullet wouldn't allow it.

They show an OAL of 1.655" with the XTP-Mag and 1.580 with their standard 300 gr XTP. I wonder why you ar so concerned with the 1.600 OAL? Is that all that will fit in your cylinder? Otherwise, for revolvers, you crimp in the bullet cannelure and forget about OAL.

 

[Rule3]

Did you measure you sized brass? The only way to match Hornady data to the cannelure is to trim your brass to 1.275. Even then I have trouble matching their COL on some calibers.

As Buck stated, just seat to the cannelure and forget it. If you can not do that then something is askew with your sizing die or something???

If you are deforming the brass I gather you are seating and crimping with the seating die?? If so then you need to re adjust your seating/crimp die.

 

[45Frank]

I'm not as bad I persieve I just think reloading is a dangerous hobby and get all the advice possible from those who have done. Then I check it out with as much book as I can.
Yes I will have no problem crimping to the cannelure. The reason the brass was crimping was the crimp was getting caught in the cannelure when the bullet was being seated. All adjusted up now.
Thank alll for the info!