Doublehelix
Member
- Joined
- Nov 7, 2016
- Messages
- 1,059
When we go to the RMR site under 9mm 124gr bullet, there are several choices for jacketed bullets:
I found a great load for my SIG P226 using 4.1gr of Titegroup at a COAL of 1.125". These are coming in at about 1072 fps with a Power Factor of about 130.
Today, I took my family to the range, and we tried shooting these cartridges in my HK VP9 and my small SIG P938, and got tons of jams and failure to feeds. Dang. I never bothered to plunk test these in any of my other guns. They feed fine in the P226. I will have to work up a new load with a shorter COAL (after some plunk testing to see if this is indeed the problem).
With the RMR FMJ RN bullets, I was loading at 1.150" (corrected value, had a typo originally) and they plunked and fed well in all of my guns, and I get why this is with different ogive angles, etc. I have no problem with understanding that part.
But, as I look back, I am not sure why I switched other than what others were saying. The RN FMJs worked fine, and are after all, less money than the JHPs.
I do not make my own SD loads, and I don't want to open up a debate on handloads for SD vs. factory loads. I am using Federal HST, and have ZERO plans to switch.
So after all of that...
Why would one choose one of these 3 bullet types over another? I have no need for expansion since as I mentioned, I use factory self defense loads. Benefits/advantages of one type vs. another?
I just ordered another 3,000 of the JHPs, and I have another 2,000 of the FMJ RNs.
Thanks,
- 9mm Jacketed MPR (JHP)
- 9mm FMJ (Round Nose)
- 9mm FMJ (Flat Nose) *Match Winner*
I found a great load for my SIG P226 using 4.1gr of Titegroup at a COAL of 1.125". These are coming in at about 1072 fps with a Power Factor of about 130.
Today, I took my family to the range, and we tried shooting these cartridges in my HK VP9 and my small SIG P938, and got tons of jams and failure to feeds. Dang. I never bothered to plunk test these in any of my other guns. They feed fine in the P226. I will have to work up a new load with a shorter COAL (after some plunk testing to see if this is indeed the problem).
With the RMR FMJ RN bullets, I was loading at 1.150" (corrected value, had a typo originally) and they plunked and fed well in all of my guns, and I get why this is with different ogive angles, etc. I have no problem with understanding that part.
But, as I look back, I am not sure why I switched other than what others were saying. The RN FMJs worked fine, and are after all, less money than the JHPs.
I do not make my own SD loads, and I don't want to open up a debate on handloads for SD vs. factory loads. I am using Federal HST, and have ZERO plans to switch.
So after all of that...
Why would one choose one of these 3 bullet types over another? I have no need for expansion since as I mentioned, I use factory self defense loads. Benefits/advantages of one type vs. another?
I just ordered another 3,000 of the JHPs, and I have another 2,000 of the FMJ RNs.
Thanks,
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