FRONTIER 55GN CMJ FLAT POINT 223

**woelofse** · 07-01-2019, 11:18

Good morning

Just starting out with reloading for my ar. It is an ADC M5 with 16" barrel and 1:9 twist. So far I have had great results with reloading and shooting sharp point cmj 55gn. My rifle cycles well with a 23.5gn load of S321and col of 56.2mm. I have now acquired Frontier cmj 55gn flat points and would like to hear if there is anyone with experience loading 55gn cmj flat points. What col works for you? Does the load differ? Do you crimp or not? Any problems with cycling etc and any tips to overcome issues, please. I have no need yet for factor and measuring speed.

These Frontier points are well priced. I purely want to use them for plinking on the range and if my rifle cycles them, I'm happy.

Thank you kindly.

**Ds J** · 07-01-2019, 21:58

No experience with your calibre and combination. Just a thought or two: 23,5gr is a low load according to the online Somchem table.

You should take the long route and work out a new load for the FP's. Since they are of identical weight and your current load is low it should not take long.

**ady** · 07-01-2019, 22:08

You should be there about in your load. I'm loading up to 25gr S321 in my LM5 with a 1:12 twist and 13" barrel. My COL is 54.5mm with a full factory crimp. I haven't had any issues with feeding so far. I've downloaded to 24gr which has been dependant on the brass. I don't have any chrono info, when i last tried to chrono my comp messed the chrono readings up and i stopped trying.

Frontier changed from the spitzer type bullet to the FP

**carleng** · 08-01-2019, 09:54

Originally Posted by ady

You should be there about in your load. I'm loading up to 25gr S321 in my LM5 with a 1:12 twist and 13" barrel. My COL is 54.5mm with a full factory crimp. I haven't had any issues with feeding so far. I've downloaded to 24gr which has been dependant on the brass. I don't have any chrono info, when i last tried to chrono my comp messed the chrono readings up and i stopped trying.

Frontier changed from the spitzer type bullet to the FP

What case prep do you do?

I also have a LM5 and I'm busy getting my reloading regimen sorted.

Any advice would be appreciated.

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**ady** · 11-01-2019, 09:35

Originally Posted by carleng

What case prep do you do?

I also have a LM5 and I'm busy getting my reloading regimen sorted.

Any advice would be appreciated.

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Case prep is a PITA.

I deprime and resize the cases. Tumble them. Clean out the primer pocket with a LEE primer pocket cleaner. Then i case gauge the cases and trim any which are too long with a LEE case trimmer for 223.

I prime off the press with a LEE hand primer.

Then case gauge once loaded.

Also check your final round for any defects or dents on the case shoulder. My LM HATES a case with a damaged shoulder. I thought the LM would be quiet slutty and eat anything, but she is very picky.

Damaged case shoulders destroyed a national for me years ago, she kept jamming up.

I hope this helps

**woelofse** · 08-01-2019, 05:28

Thank you Ady.

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**woelofse** · 10-01-2019, 13:12

Ady, just to confirm - you are also loading flat points?

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**carleng** · 10-01-2019, 17:04

Originally Posted by woelofse

Ady, just to confirm - you are also loading flat points?

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The normal COL for 55gr is around 56mm, so I would assume 2mm less is for the FP's.

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**ady** · 11-01-2019, 09:30

Originally Posted by woelofse

Ady, just to confirm - you are also loading flat points?

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Yes, i'm loading the Frontier Flat Points. The bullet is seated to the same depth in the case as the old Frontier Spitzer bullet, but the overall COL is shorter.

**Gleock** · 12-01-2019, 09:32

Originally Posted by woelofse

Ady, just to confirm - you are also loading flat points?

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I would caution against a 25gr load in your ADC before working up there with a chrono.
The ADC's have tight chambers and you will likely find that your 23.5gr load will be close to the 25gr load in the LM, especially with your increased barrel length.