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If anyone could advise me in regard to which of the local propellants are best suited for the 7 mm Mauser shooting heavier bullets, in this case 154 gr and later 170 gr.
I have noted that S 335, 355, and S 365 are all listed as suitable, but I see S335 seems to deliver a few feet more velocity safely.
Posted : 03/01/2025 1:07 pm
24" S335 PMP PMP 130gr PMP SP
76.5
Start 41.7 2 635 63.2
Max 44.8 2 884 64.4
152gr PMP SP
75.0
Start 39.5 2 441 61.8
Max 42.5 2 641 62.1
170gr PMP SP
75.1
Start 37.8 2 267 60.0
Max 40.6 2 448 60.3
S355 PMP PMP 130gr PMP SP
76.5
Start 42.0 2 641 62.9
Max 46.7 2 943 63.0
152gr PMP SP
75.3
Start 39.2 2 398 61.2
Max 43.5 2 670 61.4
170gr PMP SP
75.1
Start 37.6 2 277 60.6
Max 41.8 2 517 60.2
S365 PMP PMP 130gr PMP SP
76.5
Start 45.1 2 559 56.7
Max 48.5* 2 749 56.7
152gr PMP SP
76.4
Start 42.8 2 300 53.7
Max 46.0* 2 562 55.7
170gr PMP SP
76.9
Start 40.9 2 139 52.3
Max 44.0* 2 375 54.0
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Rifle - Conventional Data
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7 X 57mm Mauser
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Posted : 04/01/2025 2:09 am
S355 is the clear winner here but I have not seen any available for many years. S341 is nearly comparable with S355, but case fill will be down. It might be worthwhile experimenting if you have stock.
Posted : 04/01/2025 2:12 am
If anyone has stock of S341 I would gladly fight you for it. Nothing else works better in my .223.
Posted : 04/01/2025 9:58 pm
A longer barrel might allow for a slower powder. How long is your barrel?
Posted : 05/01/2025 1:17 pm
If memory serves, S361 was used in a few PMP factory loadings. S361 seems to be available at a halfway decent price.
Posted : 15/01/2025 3:38 am
If memory serves, S361 was used in a few PMP factory loadings. S361 seems to be available at a halfway decent price.
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Was 361 used for the 275 Rigby ? I have just received a 7x57 (same thing less fancy name)
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Posted : 15/01/2025 6:49 am