Anyyone loading a 200 gr LRN 45 ACP?

[Rule3]

Anyone loading a 200 gr LRN 45 ACP?**pics added**

I am looking for a OAL for this bullet. All my manuals and other data are for a LSWC.

I found a box of these bullets as a shop going out of business and got them real cheap. It is bullet #810 on this link. Same as a 230 gr, just shorter base.

http://magnusbullets.com/store/page8.html


These are not the same as the MBC 200 gr RFN

I loaded them to just up to the driving band and the OAL of
1.228 to 1.230. So does that sound right?.

I test fired 20 of them today and the fed through a SW 1911, SA XD and a Sig.
I used a start load of Win Auto Comp 6.0 gr. Just concerned with higher pressures if I increase the charge

 

[toolmanroberts]

My manual shows a maximun cartridge lenght of 1.275. Sometimes slightly shorter is fine as long as you are not compressing the powder and raising pressures.

 

[ArchAngelCD]

It's hard to say because I don't know what the OAL length will be when loading that bullet at different lengths. I would guess you will seat the bullet down so that the case rim is just below the lip where the RN starts as long as it's not too short so they don't feed correctly from the magazine.

 

[Walkalong]

If you load them at 1.265 you can use any 200 Gr data you have. You will be fine. The 200 Gr SWC's seat deeper, so you won't get into trouble using that data.

Even loading them as short as you have I doubt you will get into trouble. That is going to be more like the SWC seating depth. (Not overall length)

 

[Rule3]

Here are some pics comparing the bullets with the length of each bullet. Don't know if it helps or not.
If I load them at 1.265 is there enough of the base in the brass??

 

[rcmodel]

Your 1.228" load looks fine.

With the lighter bullet you have to seat so the front edge of the driving band shoulder is near the edge of the case mouth.

Otherwise, it will hit the rifling lead before fully chambering.

If there is still a question, take the barrel out of your gun and use it for a chamber guage.
The loaded round should drop fully & freely into the chamber without the driving band hitting the rifling leade.

rc

 

[Rule3]

Thanks. Yes, I did the bullet drop with 3 different barrels. What I find odd is the loaded dummy round will drop right in and case is level but it will not drop right out until I taper crimp. Even if I make them very (too) short. It's like the lead has more adhesion. It seems to only do this with lead bullets not FMJ

 

[rcmodel]

Not odd at all.

Lead bullets are generally larger in dia then jacketed bullets.
And the case mouth bell is still there before you taper-crimp to remove it.

rc

 

[Walkalong]

Like rcmodel posted, your 1.228 looks fine. The 1.265 is a bit long in that the case is not catching enough of the bullet in front of the lube. Since 1.228 feeds fine, no sense in changing. You will still be OK with 200 GR SWC data. Do some measuring and figure out how deep in the case it is vs what the SWC would be. I always record the length of the bullet I am loading so I can figure that out if I feel the need.

 

[Rule3]

OK, I will measure them and see what the difference if any is.

Thank you all for the assistance. I use a lot of the MBC 200 gr LRNFP but it has a cannelure. I can subtract the difference of the flat point vs the RN. take the average, divide by the square root and then just wing it.

I'm cleaning guns from my range trip right now but will measure them later.

 

[rcmodel]

point vs the RN. take the average, divide by the square root and then just wing it.

Thats way too much Chinese algebra just to get a meaningless answer.

The correct COL for any bullet design can be easily found as I posted in #6.

Use the barrel as a cartridge length guage and seat progressively deeper until it chambers freely without the bullet hitting the rifling.

With handguns, you do not try to seat to the leade like some folks do with rifles.

rc

 

[Rule3]

Yes, I did that even before I posted my question. I have Walkalongs excellent pictorial bookmarked. He did mention measuring the bullets to see how deep they would be in the case.

I was kidding.